Oxadiazoles and thiadiazoles as tgf-beta inhibitors

ABSTRACT

The present disclosure is concerned with oxadiazole and thiadiazole analogs that are capable of inhibiting TGF-β and methods of treating cancers such as, for example, multiple myeloma and a hematologic malignancy, and methods of treating fibrotic conditions using these compounds. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

CROSS-REFERENCE TO RELATED APPLICATIONS

This Application claims the benefit of U.S. Provisional Application No.62/577,608, filed on Oct. 26, 2017, the contents of which areincorporated herein by reference in their entirety.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH

This invention was made with government support under grant number 1R01CA175012 awarded by the National Institutes of Health. The governmenthas certain rights in the invention.

BACKGROUND

TGF-β is a central regulator of chronic liver disease through inductionof fibrogenic responses (Weiskirchen and Tacke (2016) Dig Dis34:410-422; Katz et al. (2016) Cancer letters 379:166-172; Yoshida etal. (2014) Int J Oncol 45:1363-1371; Fabregat et al. (2016) The FEBSjournal 283:2219-2232; Xu et al. (2016) J Histochem Cytochem64:157-167). Although infiltrating macrophages are a source of TGF-β,hepatic stellate cells are a significant source of TGF-β in liverfibrosis. TGF-β stimulates induction of myofibroblast-like properties ofhepatic stellate cells to produce extracellular matrix, leading tofibrosis. Although TGF-β inhibits hepatocyte proliferation under basalconditions, it has pro-oncogenic properties during malignant progressionthrough stimulating epithelial to mesenchymal transition, cell survivaland migration, and reduced immune surveillance.

TSP1 expression is increased in human liver disease with the THBS1 geneidentified as part of the characteristic gene signature of chronic liverdisease, including cirrhosis, in humans (Smalling et al. (2013) Am JPhysiol Gastrointest Liver Physiol 305:G364-374). In vitro studies showthat bile acids increase expression of TSP1 by hepatocytes, resulting inincreased TGF-β signaling in co-cultured hepatic stellate cells (Myunget al. (2007) Biochem Biophys Res Commun 353:1091-1096). Both TSP1 andTGF-β are increased in congenital hepatic fibrosis (El-Youssef (1999)Journal of pediatric gastroenterology and nutrition 28:386-392). THBS1message levels are increased in human liver specimens from patients withalcohol cirrhosis, NASH cirrhosis, and fibrosis and in mouse models ofliver fibrosis induced by carbon tetrachloride or DDC (Smalling et al.,(2013) Am J Physiol Gastrointet Liver Physiol 305: G364-G374.) TSP1regulated TGF-β activation prevented hepatocyte proliferation and liverregeneration after partial hepatectomy in Thbs1 deficient mice (Hayashiet al. (2012) Hepatology 55:1562-1573) and TSP1 induction by obstructedportal flow in mice is thought to lead to TGF-β-dependent liver atrophy(Hayashi et al. (2016) Hepatol Res 55: 1562-1573). TSP1 has been shownto regulate latent TGF-β activation in animal models of liver fibrosisand in cell culture models (reviewed in Li et al. (2016) Hepatol Res,doi: 10.1111/hepr.12787). Treatment of rats with the TSP1 antagonistpeptide LSKL prevented TGF-β activation and reduced liver fibrosis inthe dimethylnitrosamine model (Kondou et al. (2003) J Hepatol39:742-748). TSP1 is required for TGF-β signaling in both culturedhepatocytes and hepatic stellate cells, which is blocked by LSKL peptide(Breitkopf et al. (2005) Gut 54:673-681; Narmada (2013) J Cell Physiol228:393-401). Interestingly, TSP1-dependent latent TGF-β activationmight play a role in hepatitis C induced fibrosis and carcinogenesis asthe hepatitis C core protein induces TSP1 expression by hepatocytes toincrease active TGF-β and LSKL peptide blocks hepatitis C core proteinactivation of TGF-β (Benzoubir et al. (2013) J Hepatol 59:1160-1168).LSKL peptide administered early after injury also accelerated liverregeneration in mice following partial hepatectomy through blockingTGF-β activation and signaling (Kuroki et al. (2015) Br J Surg102:813-825). Both the TGF-β1 and the TGF-β2 isoforms are upregulated inmouse models and in human tissues with liver fibrosis and alsohepatocellular carcinoma (Dropmann et al. (2016) Oncotarget7:19499-19518): this is interesting since TSP1 can activate both the β1and β2 isoforms of latent TGF-β, whereas β2 cannot be activated byintegrin-dependent mechanisms.

Genetic ablation of TGF-β, its receptors, or its signaling mediatorsresults in developmental defects, inflammation, and increasedcarcinomas. Thus, it is therapeutically advantageous to target onlyadverse TGF-β activity in liver disease and spare homeostatic activity.Current anti-TGF-β therapeutics target the molecule itself or downstreamsignaling pathways and provide no mechanism for distinguishing betweenhomeostatic and disease-related TGF-β activity, thereby increasing thepotential for adverse effects. In fact, Smad 2 resistance and increasedpapilloma incidence in mice treated for 20 weeks with a TGF-β receptorkinase inhibitor have been identified (Connolly et al. (2011) Cancer Res71:2339-2349) and the 1D11 pan-specific anti-TGF-β neutralizing antibodyshows epithelial hyperplasia and progression to carcinoma in some models(Prud'homme (2007) Lab Invest 87:1077-1091).

TGF-β is secreted as a biologically inactive growth factor and controlof the conversion of latent TGF-β to a biologically active growth factoris a major regulatory node. Binding of the N-terminal latency associatedpeptide (LAP) prevents TGF-β binding to its receptors and thisinteraction must be disrupted for TGF-β signaling to occur. Latent TGF-βcan be converted to the active form through multiple mechanisms thatinclude proteolysis, binding to integrins, mechanical forces,modifications of the latent complex by viral enzymes or by reactiveoxygen species, or by binding to the secreted and ECM protein TSP1(Sweetwyne and Murphy-Ullrich (2012) Matrix Biol 31:178-186;Murphy-Ullrich and Poczatek (2000) Cytokine Growth Factor Rev 11:59-69).The mechanism that regulates latent TGF-β activation can vary withtissue, cell type, and specific disease milieu. Blockade of the majoractivation mechanism in a particular disease typically attenuatesadverse effects of TGF-β. Thus, it is important to identify thepredominant mechanism of TGF-β activation in multiple myeloma.

Thrombospondin 1 (TSP1) is a complex multi-functional protein releasedfrom platelet α-granules, incorporated into the fibrin clot, andexpressed by cell types that participate in wound healing responses in atemporally regulated manner (Agah et al. (2002) Am J Pathol 161:831-839;Murphy-Ullrich and Mosher (1985) Blood 66:1098-1104; DiPietro et al.(1996) Am J Pathol 148:1851-1860; Reed et al. (1993) J HistochemCytochem 41:1467-1477; Raugi et al. (1987) J Invest Dermatol89:551-554). TSP1 regulates multiple cellular events involved in tissuerepair including hemostasis, cell adhesion, migration, proliferation,ECM expression and organization, and regulation of growth factoractivity (Adams and Lawler (2004) Int J Biochem Cell Biol 36:961-968;Adams and Lawler (2011) Cold Spring Harb Perspect Biol 3:a009712). Inaddition to physiologic repair, TSP1 is also expressed at elevatedlevels in many tissues undergoing fibro-proliferative remodeling andblockade of specific actions of TSP1 or loss of TSP1 expression canattenuate pathologic tissue remodeling (Hugo (2003) Nephrol DialTransplant 18:1241-1245; Poczatek et al. (2000) Am J Pathol157:1353-1363; Daniel et al. (2007) Diabetes 56:2982-2989). TSP1 is amajor regulator of latent TGF-β activation (Murphy-Ullrich and Poczatek(2000) Cytokine Growth Factor Rev 11:59-69). TSP1 also hasTGF-β-independent functions in hemostasis, cell adhesion, migration, andgrowth factor regulation, e.g. regulation of epidermal growth factor(EGF), VEGF, and fibroblast growth factor (FGF) (Adams and Lawler (2011)Cold Spring Harb Perspect Biol 3:a009712). TSP1 is an endogenousangiogenesis inhibitor via inhibition of VEGF and FGF signaling. TSP1binding to Cluster of Differentiation 47 (CD47) and Cluster ofDifferentiation 36 (CD36) blocks nitric oxide signaling.

TSP1 is a secreted ECM protein that controls TGF-β activity by bindingand activating latent TGF-β (Sweetwyne and Murphy-Ullrich (2012) MatrixBiol 31:178-186; Murphy-Ullrich and Poczatek (2000) Cytokine GrowthFactor Rev 11:59-69). TSP1 binds to latent TGF-β to activate TGF-β atthe cell surface or in the extracellular milieu (Sweetwyne andMurphy-Ullrich (2012) Matrix Biol 31:178-186). Activation occurs throughbinding of the KRFK (-lysine-arginine-phenylalanine-lysine-) sequence inthe TSP1 type 1 repeats (TSRs) to LSKL (-leucine-serine-lysine-leucine-)in the LAP of the latent complex, which disrupts LAP-mature domaininteractions to expose the receptor binding sequences on the maturedomain, rendering TGF-β capable of signaling (Young and Murphy-Ullrich(2004) J Biol Chem 279:38032-38039). Peptide mimetics of sequencesinvolved in TSP1-TGF-β binding competitively inhibit TSP1-TGF-βactivation and studies with these peptides have established TSP1 as aprimary regulator of TGF-β bioactivity in different diseases (Sweetwyneand Murphy-Ullrich (2012) Matrix Biol 31:178-186). The tetrapeptideLSKL, which competitively blocks TSP-LAP binding, has been used inrodent models to inhibit TSP1-TGF-β activation and attenuate disease.Dose dependent intraperitoneal injection (i.p.) of LSKL improves endorgan function in murine diabetic nephropathy and rat cardiomyopathy byblocking TGF-β signaling in target tissues (Belmadani et al. (2007) Am JPathol 171:777-789; Lu et al. (2011) Am J Pathol 178:2573-2586). Animalsnecropsied after 15 weeks of treatment with 30 mg/kg i.p. LSKL, 3 timesweekly, showed no inflammation, no tumors in all major organs, and noimpairment of wound healing (Lu et al. (2011) Am J Pathol178:2573-2586).

In vitro studies have shown that TSP1 activates latent TGF-β secreted bymultiple cell types including endothelial cells, mesangial cells,hepatic stellate cells and skin, lung, and cardiac fibroblasts, T cells,and macrophages (Breitkopf et al. (2005) Gut 54:673-681; Murphy-Ullrichand Poczatek (2000) Cytokine Growth Factor Rev 11:59-69; et al. (2000)Am J Pathol 157:1353-1363; Mimura et al. (2005) Am J Pathol166:1451-1463; Yehualaeshet et al. (1999) Am J Pathol 155:841-851; Zhouet al. (2006) Biochem Biophys Res Commun 339:633-641; Schultz-Cherry andMurphy-Ullrich (1993) J Cell Biol 122:923-932; Yevdokimova et al. (2001)J Am Soc Nephrol 12:703-712; Yang et al. (2009) J Autoimmun 32: 94-103;Zhou et al. (2004) Am J Pathol 165:659-669). Peptides such as LSKL orWxxW which block TSP1 binding to the latent complex or antibodies whichblock TSP1-dependent TGF-β activation such as monoclonal antibody 133(Mab 133) have been used to establish the involvement of endogenous TSP1in TGF-β activation in a number of disease conditions and physiologicprocesses (Belmadani et al. (2007) Am J Pathol 171:777-789; Lu et al.(2011) Am J Pathol 178:2573-2586; Crawford et al. (1998) Cell93:1159-1170; Daniel et al. (2004) Kidney Int 65:459-468; Kondou et al.(2003) J Hepatol 39:742-748).

Initial evidence for an in vivo role of TSP1 in latent TGF-β activationwas shown by the ability of the KRFK peptide administered in theperinatal period to partially rescue the abnormal TSP-1 null phenotype,in particular airway epithelial hyperplasia and pancreatic islethyperplasia/acinar hypoplasia (Crawford et al. (1998) Cell93:1159-1170). Furthermore, treatment of wild type mice with the LSKLblocking peptide in the perinatal period replicated features of the TSP1knockout phenotype in the airways and pancreas. Double knockout of bothβ₆ integrin and TSP1 results in a phenotype distinct from either singleknockout that is characterized by severe inflammation, cardiacdegeneration, and epithelial hyperplasia, suggesting both separate andsynergistic roles in regulating latent TGF-β activation (Ludlow et al.(2005) J Cell Mol Med 9:421-437). However, it is likely that the primaryrole for TSP1 in controlling TGF-β activation is during injury, understress, and in pathologic conditions, rather than during development.The expression of TSP1 is induced by factors associated with systemicdiseases with fibrotic end organ involvement including high glucose,reactive oxygen species, and angiotensin II (Zhou et al. (2006) BiochemBiophys Res Commun 339:633-641; Yevdokimova et al. (2001) J Am SocNephrol 12:703-712; Wang et al. (2002) J Biol Chem 277:9880-9888; Wanget al. (2004) J Biol Chem 279:34311-34322). Indeed there is evidencefrom studies utilizing TSP1 antagonist peptides and diabetic TSP1knockout mice that TSP1 is a major factor in the development of fibroticend organ complications in diabetes (Daniel et al. (2007) Diabetes56:2982-2989; Belmadani et al. (2007) Am J Pathol 171:777-789; Lu et al.(2011) Am J Pathol 178:2573-2586). Treatment with i.p. injections ofLSKL, but not LSAL (leucine-serine-alanine-leucine) control peptide,reduced cardiac fibrosis, Smad phosphorylation, and improved leftventricular function (Belmadani et al. (2007) Am J Pathol 171:777-789).Similarly, treatment of Akita mice, a model of type 1 diabetes, withi.p. LSKL reduced urinary TGF-β activity and renal phospho-Smad 2/3levels and improved markers of tubulointerstitial injury and podocytefunction. (Lu et al. (2011) Am J Pathol 178:2573-2586). Both TSP1 andTGF-β are upregulated in pulmonary arterial hypertension due to chronichypoxia, Schistosomiasis, and in scleroderma: recent studies show thatTSP1 knockout or treatment with the blocking peptide LSKL protectedagainst development of pulmonary hypertension due to hypoxia orSchistosome infection and also reduced active TGF-β (Kumar R et al,(2017) Nature Commun. 8: 15494). Epidermolysis bullosa is a disfiguring,blistering skin disease due to genetic defects in collagen and collagenanchoring fibrils that link the epidermis to the dermis. It has afibrotic phenotype associated with increased TGF-β activity and thusTGF-β antagonists have been proposed as therapeutic agents (Nystroem Aet al, (2015) EMBO Mol Medicine 7: 1211-1228). Losartan reduces TGF-βactivity, inflammation, and the increased TSP-1 expression in a collagenVII hypomorphic model of epidermolysis bullosa (Nystroem A, et al).Interestingly, several studies have shown that TSP1 is involved inalveolar macrophage-dependent TGF-β activation in mouse and rat modelsof bleomycin-induced pulmonary fibrosis and treatment with either TSP1or CD36 antagonist peptides can ameliorate lung fibrosis and reduceactive TGF-β (Chen et al. (2009) Exp. Toxicol. Pathol. 61: 59-65;Yehualaeshet et al. (2000) Am. J. Respir. Cell Mol. Biol. 23: 204-12).

One of the roles of TSP1 in dermal wound healing appears to beregulating the activation of latent TGF-β. The phenotype of excisionalwound healing in the TSP1 null mouse is consistent with a decrease inlocal TGF-β activation (Agah et al. (2002) Am J Pathol 161:831-839) andis characterized by a delay in macrophage recruitment and capillaryangiogenesis and a persistence of granulation tissue,neovascularization, and inflammation (Nor et al. (2005) Oral Biosci Med2:153-161). Topical treatment of TSP1 null wounds with the KRFKactivating peptide largely rescued the TSP1 null wound phenotype (Nor etal. (2005) Oral Biosci Med 2:153-161). TGF-β levels in these wounds wereincreased following KRFK treatment and the effects of the KRFK peptidewere blocked by a pan-specific anti-TGF-β antibody. While these datasuggest that TSP1 plays a role in local activation of TGF-β duringwounding, the studies of Agah et al., concluded that the decreasedactive and total TGF-β in the wounds of TSP1 or TSP1/TSP2 null mice isindirect and primarily due to defects in macrophage recruitment towounds (a maj or source of TGF-β in wounds) leading to an overallreduction in TGF-β rather than a defect in activation (Agah et al.(2002) Am J Pathol 161:831-839). Despite this controversy, it is clearthat TSP1 has the potential to modify the wound healing process.Subcutaneous implantation of TSP1 soaked sponges increased levels ofactive TGF-β, gel contraction and fibroblast migration (Sakai et al.(2003) J Dermatol Sci 31:99-109). Overexpression of TSP1 in keloids andin scleroderma correlates with increased TGF-β activity (Mimura et al.(2005) Am J Pathol 166:1451-1463; et al. (2000) Cell Death Differ7:166-176; Chen et al. (2011) Fibrogenesis Tissue Repair 4:9). Othershave used a derivative of the KRFK sequence, KFK(lysine-phenylalanine-lysine) coupled to a fatty acyl moiety to locallyactivate TGF-β and increase TIMP-1, which reduces MMP-induced elastinand collagen degradation when applied to dermal fibroblast cultures(Cauchard et al. (2004) Biochem Pharmacol 67:2013-2022). Systemicadministration of the LSKL blocking peptide did not reduce Smadsignaling or impair dermal wound healing in diabetic mice, although,these studies did not address the effects of direct LSKL administrationto the wounds and it is not known if local dermal levels of LSKLfollowing systemic intraperitoneal peptide administration are sufficientto alter local TGF-β activation (Lu et al. (2011) Am J Pathol178:2573-2586).

Although peptides comprising the amino acid sequence LSKL capable ofstimulating TGF-β activity are known, these peptides are often costlyand difficult to synthesize. Moreover, small molecules such as LSKL havean extremely short plasma stability half-life, only 2.1 minutes. Thus,there remains a need for small molecules capable of altering TGF-βactivity that are less expensive, easier to synthesize, and have anextended plasma stability half-life and methods of making and usingsame.

SUMMARY

In accordance with the purpose(s) of the invention, as embodied andbroadly described herein, the invention, in one aspect, relates tooxadiazole and thiadiazole compounds useful in the treatment ofdisorders associated with a dysregulation of TGF-β including, but notlimited to, cancers, in particular, multiple myeloma and hematologicmalignancies, immune dysfunction, and fibrotic disorders, in particular,liver fibrosis, diabetic nephropathy, muscular dystrophy, amyotrophiclateral sclerosis, PAH, NASH, epidermolysis bullosa, and glaucoma.

Disclosed are compounds having a structure represented by a formulaselected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

Also disclosed are compounds having a structure represented by a formulaselected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof.

Also disclosed are pharmaceutical compositions comprising atherapeutically effective amount of at least one disclosed compound anda pharmaceutically acceptable carrier.

Also disclosed are methods for inhibiting TGF-β activity in a subject,the method comprising the step of administering to the subject aneffective amount of at least one compound having a structure representedby a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby inhibiting TGF-β activity in the subject.

Also disclosed are methods for inhibiting TGF-β activity in at least onecell, the method comprising the step of contacting the cell with aneffective amount of at least one compound having a structure representedby a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby TGF-β activity in the cell.

Also disclosed are kits comprising at least one compound of claim 1 andone or more of: (a) at least one agent known to increase TGF-β activity;(b) at least one agent known to treat cancer; (c) at least one agentknown to treat a fibrotic disorder; (d) at least one agent known to animmune dysfunction; (e) instructions for treating a disorder associatedwith TGF-β dysfunction; (f) instructions for treating cancer; (g)instructions for treating a fibrotic disorder; and (h) instructions fortreating an immune dysfunction.

Still other objects and advantages of the present disclosure will becomereadily apparent by those skilled in the art from the following detaileddescription, wherein it is shown and described only the preferredembodiments, simply by way of illustration of the best mode. As will berealized, the disclosure is capable of other and different embodiments,and its several details are capable of modifications in various obviousrespects, without departing from the disclosure. Accordingly, thedescription is to be regarded as illustrative in nature and not asrestrictive.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying figures, which are incorporated in and constitute apart of this specification, illustrate several aspects and together withthe description serve to explain the principles of the invention.

FIG. 1A and FIG. 1B show representative data illustrating the impact ofTSP1, LSKL and TGF-β on osteoblast differentiation by MSCs underosteogenic conditions.

FIG. 2A and FIG. 2B show representative data illustrating the impact ofLSKL treatment on tumor burden in the SCID-tibia MM model.

FIG. 3A-C show representative data illustrating the impact of LSKLtreatment on Smad 2 phosphorylation in bone marrow myeloma cells.

FIG. 4A and FIG. 4B show representative data illustrating the impact ofTSP1 and LSKL on TGF-β activity in CAG MM cells.

FIG. 5 shows representative data illustrating that SRI-40000 reducesmyeloma tumor burden as measured by serum human Ig kappa in a systemicxenograft model of myeloma.

FIG. 6A-C show representative pharmacokinetic data for compound no.42140 after IV (FIG. 6A), p.o. (FIG. 6B), and both IV and p.o. (FIG. 6C)administration.

FIG. 7A-C show representative pharmacokinetic data for compound no.42320 after IV (FIG. 7A), p.o. (FIG. 7B), and both IV and p.o. (FIG. 7C)administration.

FIG. 8 shows representative images illustrating the criteria ofhistological features for the bronchiole and pulmonary arterioledamageand inflammation.

FIG. 9 shows representative images illustrating the criteria ofhistological features for lung fibrosis screening (A: Normal; B: score1; C: score 2; D: score 3; E: score 4; F: score 5; G: score 6; H: score7; I: score 8).

FIG. 10 shows representative data illustrating the changes in animalbody weight during the experiment.

FIG. 11 shows representative data illustrating the growth rate of animalbody weight during the experiment.

FIG. 12A-D show representative images illustrating BLM-induced left lungdamage in a model group (FIG. 12A and FIG. 12C) and a CPD-X group (FIG.12B and FIG. 12D).

FIG. 13A-D show representative images illustrating bronchial, arteriole,and alveolar damages in fibrotic core in a model group (FIG. 13A andFIG. 13C) and a CPD-X group (FIG. 13B and FIG. 13D). Specifically, FIG.13A and FIG. 13B show bronchial (“b”) and arteriole (“a”) damage in thefibrosis core. FIG. 13C and FIG. 13D show alveolar wall damage withinflammatory cell infiltration (FIG. 13C, bottom arrow and FIG. 13D,arrow) and several alveolar structure disappeared (FIG. 13C, top arrow)and damage in fibrosis core. H&E staining, magnification ×200.

FIG. 14 shows representative data illustrating the change of left lungbronchial and arteriole damages in the fibrotic core. T-test: ***p<0.001vs. model group.

FIG. 15 shows representative data illustrating the change of left lungbronchial and arteriole damages in the border of the fibrosis core.T-test: **p<0.01 vs. model group.

FIG. 16A-D show representative images illustrating the histologicalchanges of lung fibrosis in a model group (FIG. 16A and FIG. 16C) and aCPD-X group (FIG. 16B and FIG. 16D). Specifically, alveolar wall damagewith fibrosis (FIG. 16C, top arrow and FIG. 16D, both arrows) andseveral alveolar structure damages (FIG. 16C, bottom two arrows) withfibrotic mass in fibrosis core is shown. Masson Trichrome staining,magnification ×200.

FIG. 17 shows representative data illustrating the BLM-induced left lungdamage area (%).

FIG. 18 shows representative data illustrating the change in left lungAshcroft fibrosis core. T-test: **p<0.01 vs. model.

FIG. 19 shows representative data illustrating the ratio of left lungfibrosis score. Two-way ANOVA: *p<0.05 vs. model.

FIG. 20A and FIG. 20B show representative images illustrating the grossimages of hearts in a model group (FIG. 20A) and a CPD-X group (FIG.20B).

FIG. 21 shows representative data illustrating the changes in the heartweight and heart index (%).

Additional advantages of the invention will be set forth in part in thedescription which follows, and in part will be obvious from thedescription, or can be learned by practice of the invention. Theadvantages of the invention will be realized and attained by means ofthe elements and combinations particularly pointed out in the appendedclaims. It is to be understood that both the foregoing generaldescription and the following detailed description are exemplary andexplanatory only and are not restrictive of the invention, as claimed.

DETAILED DESCRIPTION

The present invention can be understood more readily by reference to thefollowing detailed description of the invention and the Examplesincluded therein.

Before the present compounds, compositions, articles, systems, devices,and/or methods are disclosed and described, it is to be understood thatthey are not limited to specific synthetic methods unless otherwisespecified, or to particular reagents unless otherwise specified, as suchmay, of course, vary. It is also to be understood that the terminologyused herein is for the purpose of describing particular aspects only andis not intended to be limiting. Although any methods and materialssimilar or equivalent to those described herein can be used in thepractice or testing of the present invention, example methods andmaterials are now described.

While aspects of the present invention can be described and claimed in aparticular statutory class, such as the system statutory class, this isfor convenience only and one of skill in the art will understand thateach aspect of the present invention can be described and claimed in anystatutory class. Unless otherwise expressly stated, it is in no wayintended that any method or aspect set forth herein be construed asrequiring that its steps be performed in a specific order. Accordingly,where a method claim does not specifically state in the claims ordescriptions that the steps are to be limited to a specific order, it isno way intended that an order be inferred, in any respect. This holdsfor any possible non-express basis for interpretation, including mattersof logic with respect to arrangement of steps or operational flow, plainmeaning derived from grammatical organization or punctuation, or thenumber or type of aspects described in the specification.

Throughout this application, various publications are referenced. Thedisclosures of these publications in their entireties are herebyincorporated by reference into this application in order to more fullydescribe the state of the art to which this pertains. The referencesdisclosed are also individually and specifically incorporated byreference herein for the material contained in them that is discussed inthe sentence in which the reference is relied upon. Nothing herein is tobe construed as an admission that the present invention is not entitledto antedate such publication by virtue of prior invention. Further, thedates of publication provided herein may be different from the actualpublication dates, which can require independent confirmation.

A. Definitions

Listed below are definitions of various terms used to describe thisinvention. These definitions apply to the terms as they are usedthroughout this specification, unless otherwise limited in specificinstances, either individually or as part of a larger group.

As used in the specification and the appended claims, the singular forms“a,” “an” and “the” include plural referents unless the context clearlydictates otherwise. Thus, for example, reference to “a functionalgroup,” “an alkyl,” or “a residue” includes mixtures of two or more suchfunctional groups, alkyls, or residues, and the like.

Ranges can be expressed herein as from “about” one particular value,and/or to “about” another particular value. When such a range isexpressed, another aspect includes from the one particular value and/orto the other particular value. Similarly, when values are expressed asapproximations, by use of the antecedent “about,” it will be understoodthat the particular value forms another aspect. It will be furtherunderstood that the endpoints of each of the ranges are significant bothin relation to the other endpoint, and independently of the otherendpoint. It is also understood that there are a number of valuesdisclosed herein, and that each value is also herein disclosed as“about” that particular value in addition to the value itself. Forexample, if the value “10” is disclosed, then “about 10” is alsodisclosed. It is also understood that each unit between two particularunits are also disclosed. For example, if 10 and 15 are disclosed, then11, 12, 13, and 14 are also disclosed.

References in the specification and concluding claims to parts by weightof a particular element or component in a composition denotes the weightrelationship between the element or component and any other elements orcomponents in the composition or article for which a part by weight isexpressed. Thus, in a compound containing 2 parts by weight of componentX and 5 parts by weight component Y, X and Y are present at a weightratio of 2:5, and are present in such ratio regardless of whetheradditional components are contained in the compound.

A weight percent (wt. %) of a component, unless specifically stated tothe contrary, is based on the total weight of the formulation orcomposition in which the component is included.

As used herein, the terms “optional” or “optionally” mean that thesubsequently described event or circumstance can or cannot occur, andthat the description includes instances where said event or circumstanceoccurs and instances where it does not.

As used herein, the term “subject” can be a vertebrate, such as amammal, a fish, a bird, a reptile, or an amphibian. Thus, the subject ofthe herein disclosed methods can be a human, non-human primate, horse,pig, rabbit, dog, sheep, goat, cow, cat, guinea pig, or rodent. The termdoes not denote a particular age or sex. Thus, adult and newbornsubjects, as well as fetuses, whether male or female, are intended to becovered. In one aspect, the subject is a mammal. A patient refers to asubject afflicted with a viral infection. The term “patient” includeshuman and veterinary subjects. In some aspects of the disclosed methods,the subject has been diagnosed with a need for treatment of one or moreviral infections prior to the administering step. In various aspects,the one or more disorders is selected from chikungunya, Venezuelanequine encephalitis, dengue, influenza, and zika.

As used herein, the term “treatment” refers to the medical management ofa patient with the intent to cure, ameliorate, stabilize, or prevent adisease, pathological condition, or disorder. This term includes activetreatment, that is, treatment directed specifically toward theimprovement of a disease, pathological condition, or disorder, and alsoincludes causal treatment, that is, treatment directed toward removal ofthe cause of the associated disease, pathological condition, ordisorder. In addition, this term includes palliative treatment, that is,treatment designed for the relief of symptoms rather than the curing ofthe disease, pathological condition, or disorder; preventativetreatment, that is, treatment directed to minimizing or partially orcompletely inhibiting the development of the associated disease,pathological condition, or disorder; and supportive treatment, that is,treatment employed to supplement another specific therapy directedtoward the improvement of the associated disease, pathologicalcondition, or disorder. In various aspects, the term covers anytreatment of a subject, including a mammal (e.g., a human), andincludes: (i) preventing the disease from occurring in a subject thatcan be predisposed to the disease but has not yet been diagnosed ashaving it; (ii) inhibiting the disease, i.e., arresting its development;or (iii) relieving the disease, i.e., causing regression of the disease.In one aspect, the subject is a mammal such as a primate, and, in afurther aspect, the subject is a human. The term “subject” also includesdomesticated animals (e.g., cats, dogs, etc.), livestock (e.g., cattle,horses, pigs, sheep, goats, etc.), and laboratory animals (e.g., mouse,rabbit, rat, guinea pig, fruit fly, etc.).

As used herein, the term “prevent” or “preventing” refers to precluding,averting, obviating, forestalling, stopping, or hindering something fromhappening, especially by advance action. It is understood that wherereduce, inhibit, or prevent are used herein, unless specificallyindicated otherwise, the use of the other two words is also expresslydisclosed.

As used herein, the term “diagnosed” means having been subjected to aphysical examination by a person of skill, for example, a physician, andfound to have a condition that can be diagnosed or treated by thecompounds, compositions, or methods disclosed herein. In some aspects ofthe disclosed methods, the subject has been diagnosed with a need fortreatment of a viral infection prior to the administering step. As usedherein, the phrase “identified to be in need of treatment for adisorder,” or the like, refers to selection of a subject based upon needfor treatment of the disorder. It is contemplated that theidentification can, in one aspect, be performed by a person differentfrom the person making the diagnosis. It is also contemplated, in afurther aspect, that the administration can be performed by one whosubsequently performed the administration.

As used herein, the terms “administering” and “administration” refer toany method of providing a pharmaceutical preparation to a subject. Suchmethods are well known to those skilled in the art and include, but arenot limited to, oral administration, transdermal administration,administration by inhalation, nasal administration, topicaladministration, intravaginal administration, ophthalmic administration,intraaural administration, intracerebral administration, rectaladministration, and parenteral administration, including injectable suchas intravenous administration, intra-arterial administration,intramuscular administration, and subcutaneous administration.Administration can be continuous or intermittent. In various aspects, apreparation can be administered therapeutically; that is, administeredto treat an existing disease or condition. In further various aspects, apreparation can be administered prophylactically; that is, administeredfor prevention of a disease or condition.

The term “treating” refers to relieving the disease, disorder, orcondition, i.e., causing regression of the disease, disorder, and/orcondition. The term “preventing” refers to preventing a disease,disorder, or condition from occurring in a human or an animal that maybe predisposed to the disease, disorder and/or condition, but has notyet been diagnosed as having it; and/or inhibiting the disease,disorder, or condition, i.e., arresting its development.

The term “contacting” as used herein refers to bringing a disclosedcompound and a cell, target receptor, or other biological entitytogether in such a manner that the compound can affect the activity ofthe target (e.g., receptor, cell, etc.), either directly; i.e., byinteracting with the target itself, or indirectly; i.e., by interactingwith another molecule, co-factor, factor, or protein on which theactivity of the target is dependent.

As used herein, the terms “effective amount” and “amount effective”refer to an amount that is sufficient to achieve the desired result orto have an effect on an undesired condition. For example, a“therapeutically effective amount” refers to an amount that issufficient to achieve the desired therapeutic result or to have aneffect on undesired symptoms, but is generally insufficient to causeadverse side effects. The specific therapeutically effective dose levelfor any particular patient will depend upon a variety of factorsincluding the disorder being treated and the severity of the disorder;the specific composition employed; the age, body weight, general health,sex and diet of the patient; the time of administration; the route ofadministration; the rate of excretion of the specific compound employed;the duration of the treatment; drugs used in combination or coincidentalwith the specific compound employed and like factors well known in themedical arts. For example, it is well within the skill of the art tostart doses of a compound at levels lower than those required to achievethe desired therapeutic effect and to gradually increase the dosageuntil the desired effect is achieved. If desired, the effective dailydose can be divided into multiple doses for purposes of administration.Consequently, single dose compositions can contain such amounts orsubmultiples thereof to make up the daily dose. The dosage can beadjusted by the individual physician in the event of anycontraindications. Dosage can vary, and can be administered in one ormore dose administrations daily, for one or several days. Guidance canbe found in the literature for appropriate dosages for given classes ofpharmaceutical products. In further various aspects, a preparation canbe administered in a “prophylactically effective amount”; that is, anamount effective for prevention of a disease or condition.

As used herein, “IC₅₀,” is intended to refer to the concentration of asubstance (e.g., a compound or a drug) that is required for 50%inhibition of a biological process, or component of a process, includinga protein, subunit, organelle, ribonucleoprotein, etc. In one aspect, anIC₅₀ can refer to the concentration of a substance that is required for50% inhibition in vivo, as further defined elsewhere herein.

The term “comprising” (and its grammatical variations) as used herein isused in the inclusive sense of “having” or “including” and not in theexclusive sense of “consisting of.”

The compounds according to this disclosure may form prodrugs at hydroxylor amino functionalities using alkoxy, amino acids, etc., groups as theprodrug forming moieties. For instance, the hydroxymethyl position mayform mono-, di- or triphosphates and again these phosphates can formprodrugs. Preparations of such prodrug derivatives are discussed invarious literature sources (examples are: Alexander et al., J. Med.Chem. 1988, 31, 318; Aligas-Martin et al., PCT WO 2000/041531, p. 30).The nitrogen function converted in preparing these derivatives is one(or more) of the nitrogen atoms of a compound of the disclosure.

“Derivatives” of the compounds disclosed herein are pharmaceuticallyacceptable salts, prodrugs, deuterated forms, radio-actively labeledforms, isomers, solvates and combinations thereof. The “combinations”mentioned in this context are refer to derivatives falling within atleast two of the groups: pharmaceutically acceptable salts, prodrugs,deuterated forms, radio-actively labeled forms, isomers, and solvates.Examples of radio-actively labeled forms include compounds labeled withtritium, phosphorous-32, iodine-129, carbon-11, fluorine-18, and thelike.

“Pharmaceutically acceptable salts” refer to derivatives of thedisclosed compounds wherein the parent compound is modified by makingacid or base salts thereof. The compounds of this disclosure form acidaddition salts with a wide variety of organic and inorganic acids andinclude the physiologically acceptable salts which are often used inpharmaceutical chemistry. Such salts are also part of this disclosure.Typical inorganic acids used to form such salts include hydrochloric,hydrobromic, hydroiodic, nitric, sulfuric, phosphoric, hypophosphoricacid, and the like. Salts derived from organic acids, such as aliphaticmono- and dicarboxylic acids, phenyl substituted alkanoic acids,hydroxyalkanoic and hydroxyalkandioic acids, aromatic acids, aliphaticand aromatic sulfonic acids may also be used. Such pharmaceuticallyacceptable salts thus include acetate, phenylacetate, trifluoroacetate,acrylate, ascorbate, benzoate, chlorobenzoate, dinitrobenzoate,hydroxybenzoate, methoxybenzoate, methylbenzoate, o-acetoxybenzoate,naphthalene-2-benzoate, bromide, isobutyrate, phenylbutyrate,β-hydroxybutyrate, butyne-1,4-dioate, hexyne-1,4-dioate, caprate,caprylate, chloride, cinnamate, citrate, formate, fumarate, glycollate,heptanoate, hippurate, lactate, malate, maleate, hydroxymaleate,malonate, mandelate, mesylate, nicotinate, isonicotinate, nitrate,oxalate, phthalate, teraphthalate, phosphate, monohydrogenphosphate,dihydrogenphosphate, metaphosphate, pyrophosphate, propiolate,propionate, phenylpropionate, salicylate, sebacate, succinate, suberate,sulfate, bisulfate, pyrosulfate, sulfite, bisulfite, sulfonate,benzene-sulfonate, p-bromobenzenesulfonate, chlorobenzenesulfonate,ethanesulfonate, 2-hydroxyethanesulfonate, methanesulfonate,naphthalene-1-sulfonate, naphthalene-2-sulfonate, p-toleunesulfonate,xylenesulfonate, tartarate, and the like.

It is understood that the compounds of the present disclosure relate toall optical isomers and stereo-isomers at the various possible atoms ofthe molecule, unless specified otherwise. Compounds may be separated orprepared as their pure enantiomers or diasteriomers by crystallization,chromatography or synthesis.

The term “leaving group” refers to an atom (or a group of atoms) withelectron withdrawing ability that can be displaced as a stable species,taking with it the bonding electrons. Examples of suitable leavinggroups include sulfonate esters, including triflate, mesylate, tosylate,brosylate, and halides.

As used herein, the term “substituted” is contemplated to include allpermissible substituents of organic compounds. In a broad aspect, thepermissible substituents include acyclic and cyclic, branched andunbranched, carbocyclic and heterocyclic, and aromatic and nonaromaticsubstituents of organic compounds. Illustrative substituents include,for example, those described below. The permissible substituents can beone or more and the same or different for appropriate organic compounds.For purposes of this disclosure, the heteroatoms, such as nitrogen, canhave hydrogen substituents and/or any permissible substituents oforganic compounds described herein which satisfy the valences of theheteroatoms. This disclosure is not intended to be limited in any mannerby the permissible substituents of organic compounds. Also, the terms“substitution” or “substituted with” include the implicit proviso thatsuch substitution is in accordance with permitted valence of thesubstituted atom and the substituent, and that the substitution resultsin a stable compound, e.g., a compound that does not spontaneouslyundergo transformation such as by rearrangement, cyclization,elimination, etc. It is also contemplated that, in certain aspects,unless expressly indicated to the contrary, individual substituents canbe further optionally substituted (i.e., further substituted orunsubstituted).

In defining various terms, “A¹,” “A²,” “A³,” and “A⁴” are used herein asgeneric symbols to represent various specific substituents. Thesesymbols can be any substituent, not limited to those disclosed herein,and when they are defined to be certain substituents in one instance,they can, in another instance, be defined as some other substituents.

The term “alkyl” as used herein is a branched or unbranched saturatedhydrocarbon group of 1 to 24 carbon atoms, such as methyl, ethyl,n-propyl, isopropyl, n-butyl, isobutyl, s-butyl, t-butyl, n-pentyl,isopentyl, s-pentyl, neopentyl, hexyl, heptyl, octyl, nonyl, decyl,dodecyl, tetradecyl, hexadecyl, eicosyl, tetracosyl, and the like. Thealkyl group can also be substituted or unsubstituted. The alkyl groupcan be substituted with one or more groups including, but not limitedto, optionally substituted alkyl, cycloalkyl, alkoxy, amino, ether,halide, hydroxy, nitro, silyl, sulfo-oxo, or thiol, as described herein.A “lower alkyl” group is an alkyl group containing from one to six(e.g., from one to four) carbon atoms.

Throughout the specification “alkyl” is generally used to refer to bothunsubstituted alkyl groups and substituted alkyl groups; however,substituted alkyl groups are also specifically referred to herein byidentifying the specific substituent(s) on the alkyl group. For example,the term “halogenated alkyl” specifically refers to an alkyl group thatis substituted with one or more halide, e.g., fluorine, chlorine,bromine, or iodine. The term “alkoxyalkyl” specifically refers to analkyl group that is substituted with one or more alkoxy groups, asdescribed below. The term “alkylamino” specifically refers to an alkylgroup that is substituted with one or more amino groups, as describedbelow, and the like. When “alkyl” is used in one instance and a specificterm such as “alkylalcohol” is used in another, it is not meant to implythat the term “alkyl” does not also refer to specific terms such as“alkylalcohol” and the like.

This practice is also used for other groups described herein. That is,while a term such as “cycloalkyl” refers to both unsubstituted andsubstituted cycloalkyl moieties, the substituted moieties can, inaddition, be specifically identified herein; for example, a particularsubstituted cycloalkyl can be referred to as, e.g., an“alkylcycloalkyl.” Similarly, a substituted alkoxy can be specificallyreferred to as, e.g., a “halogenated alkoxy,” a particular substitutedalkenyl can be, e.g., an “alkenylalcohol,” and the like. Again, thepractice of using a general term, such as “cycloalkyl,” and a specificterm, such as “alkylcycloalkyl,” is not meant to imply that the generalterm does not also include the specific term.

The term “cycloalkyl” as used herein is a non-aromatic carbon-based ringcomposed of at least three carbon atoms. Examples of cycloalkyl groupsinclude, but are not limited to, cyclopropyl, cyclobutyl, cyclopentyl,cyclohexyl, norbornyl, and the like. The term “heterocycloalkyl” is atype of cycloalkyl group as defined above, and is included within themeaning of the term “cycloalkyl,” where at least one of the carbon atomsof the ring is replaced with a heteroatom such as, but not limited to,nitrogen, oxygen, sulfur, or phosphorus. The cycloalkyl group andheterocycloalkyl group can be substituted or unsubstituted. Thecycloalkyl group and heterocycloalkyl group can be substituted with oneor more groups including, but not limited to, optionally substitutedalkyl, cycloalkyl, alkoxy, amino, ether, halide, hydroxy, nitro, silyl,sulfo-oxo, or thiol as described herein.

The term “polyalkylene group” as used herein is a group having two ormore CH₂ groups linked to one another. The polyalkylene group can berepresented by the formula —(CH₂)_(a)—, where “a” is an integer of from2 to 500.

The terms “alkoxy” and “alkoxyl” as used herein to refer to an alkyl orcycloalkyl group bonded through an ether linkage; that is, an “alkoxy”group can be defined as —OA¹ where A¹ is alkyl or cycloalkyl as definedabove. “Alkoxy” also includes polymers of alkoxy groups as justdescribed; that is, an alkoxy can be a polyether such as —OA¹-OA² or—OA¹-(OA²)_(a)-OA³, where “a” is an integer of from 1 to 200 and A¹, A²,and A³ are alkyl and/or cycloalkyl groups.

The term “alkenyl” as used herein is a hydrocarbon group of from 2 to 24carbon atoms with a structural formula containing at least onecarbon-carbon double bond. Asymmetric structures such as (A¹A²)C═C(A³A⁴)are intended to include both the E and Z isomers. This can be presumedin structural formulae herein wherein an asymmetric alkene is present,or it can be explicitly indicated by the bond symbol C═C. The alkenylgroup can be substituted with one or more groups including, but notlimited to, optionally substituted alkyl, cycloalkyl, alkoxy, alkenyl,cycloalkenyl, alkynyl, cycloalkynyl, aryl, heteroaryl, aldehyde, amino,carboxylic acid, ester, ether, halide, hydroxy, ketone, azide, nitro,silyl, sulfo-oxo, or thiol, as described herein.

The term “cycloalkenyl” as used herein is a non-aromatic carbon-basedring composed of at least three carbon atoms and containing at least onecarbon-carbon double bound, i.e., C═C. Examples of cycloalkenyl groupsinclude, but are not limited to, cyclopropenyl, cyclobutenyl,cyclopentenyl, cyclopentadienyl, cyclohexenyl, cyclohexadienyl,norbornenyl, and the like. The term “heterocycloalkenyl” is a type ofcycloalkenyl group as defined above, and is included within the meaningof the term “cycloalkenyl,” where at least one of the carbon atoms ofthe ring is replaced with a heteroatom such as, but not limited to,nitrogen, oxygen, sulfur, or phosphorus. The cycloalkenyl group andheterocycloalkenyl group can be substituted or unsubstituted. Thecycloalkenyl group and heterocycloalkenyl group can be substituted withone or more groups including, but not limited to, optionally substitutedalkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl,aryl, heteroaryl, aldehyde, amino, carboxylic acid, ester, ether,halide, hydroxy, ketone, azide, nitro, silyl, sulfo-oxo, or thiol asdescribed herein.

The term “alkynyl” as used herein is a hydrocarbon group of 2 to 24carbon atoms with a structural formula containing at least onecarbon-carbon triple bond. The alkynyl group can be unsubstituted orsubstituted with one or more groups including, but not limited to,optionally substituted alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl,alkynyl, cycloalkynyl, aryl, heteroaryl, aldehyde, amino, carboxylicacid, ester, ether, halide, hydroxy, ketone, azide, nitro, silyl,sulfo-oxo, or thiol, as described herein.

The term “cycloalkynyl” as used herein is a non-aromatic carbon-basedring composed of at least seven carbon atoms and containing at least onecarbon-carbon triple bound. Examples of cycloalkynyl groups include, butare not limited to, cycloheptynyl, cyclooctynyl, cyclononynyl, and thelike. The term “heterocycloalkynyl” is a type of cycloalkenyl group asdefined above, and is included within the meaning of the term“cycloalkynyl,” where at least one of the carbon atoms of the ring isreplaced with a heteroatom such as, but not limited to, nitrogen,oxygen, sulfur, or phosphorus. The cycloalkynyl group andheterocycloalkynyl group can be substituted or unsubstituted. Thecycloalkynyl group and heterocycloalkynyl group can be substituted withone or more groups including, but not limited to, optionally substitutedalkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl,aryl, heteroaryl, aldehyde, amino, carboxylic acid, ester, ether,halide, hydroxy, ketone, azide, nitro, silyl, sulfo-oxo, or thiol asdescribed herein.

The term “aryl” as used herein is a group that contains any carbon-basedaromatic group including, but not limited to, benzene, naphthalene,phenyl, biphenyl, phenoxybenzene, and the like. The term “aryl” alsoincludes “heteroaryl,” which is defined as a group that contains anaromatic group that has at least one heteroatom incorporated within thering of the aromatic group. Examples of heteroatoms include, but are notlimited to, nitrogen, oxygen, sulfur, and phosphorus. Likewise, the term“non-heteroaryl,” which is also included in the term “aryl,” defines agroup that contains an aromatic group that does not contain aheteroatom. The aryl group can be substituted or unsubstituted. The arylgroup can be substituted with one or more groups including, but notlimited to, optionally substituted alkyl, cycloalkyl, alkoxy, alkenyl,cycloalkenyl, alkynyl, cycloalkynyl, aryl, heteroaryl, aldehyde, amino,carboxylic acid, ester, ether, halide, hydroxy, ketone, azide, nitro,silyl, sulfo-oxo, or thiol as described herein. The term “biaryl” is aspecific type of aryl group and is included in the definition of “aryl.”Biaryl refers to two aryl groups that are bound together via a fusedring structure, as in naphthalene, or are attached via one or morecarbon-carbon bonds, as in biphenyl.

The term “aldehyde” as used herein is represented by the formula —C(O)H.Throughout this specification “C(O)” is a short hand notation for acarbonyl group, i.e., C═O.

The terms “amine” or “amino” as used herein are represented by theformula —NA¹A², where A¹ and A² can be, independently, hydrogen oralkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl,or heteroaryl group as described herein.

The term “alkylamino” as used herein is represented by the formula—NH(-alkyl) where alkyl is a described herein. Representative examplesinclude, but are not limited to, methylamino group, ethylamino group,propylamino group, isopropylamino group, butylamino group, isobutylaminogroup, (sec-butyl)amino group, (tert-butyl)amino group, pentylaminogroup, isopentylamino group, (tert-pentyl)amino group, hexylamino group,and the like.

The term “dialkylamino” as used herein is represented by the formula—N(-alkyl)₂ where alkyl is a described herein. Representative examplesinclude, but are not limited to, dimethylamino group, diethylaminogroup, dipropylamino group, diisopropylamino group, dibutylamino group,diisobutylamino group, di(sec-butyl)amino group, di(tert-butyl)aminogroup, dipentylamino group, diisopentylamino group, di(tert-pentyl)aminogroup, dihexylamino group, N-ethyl-N-methylamino group,N-methyl-N-propylamino group, N-ethyl-N-propylamino group and the like.

The term “carboxylic acid” as used herein is represented by the formula—C(O)OH.

The term “ester” as used herein is represented by the formula —OC(O)A¹or —C(O)OA¹, where A¹ can be an optionally substituted alkyl,cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, orheteroaryl group as described herein. The term “polyester” as usedherein is represented by the formula -(A¹O(O)C-A²-C(O)O)_(a)— or-(A¹O(O)C-A²-OC(O))_(a)—, where A¹ and A² can be, independently, anoptionally substituted alkyl, cycloalkyl, alkenyl, cycloalkenyl,alkynyl, cycloalkynyl, aryl, or heteroaryl group described herein and“a” is an integer from 1 to 500. “Polyester” is as the term used todescribe a group that is produced by the reaction between a compoundhaving at least two carboxylic acid groups with a compound having atleast two hydroxyl groups.

The term “ether” as used herein is represented by the formula A¹OA²,where A¹ and A² can be, independently, an optionally substituted alkyl,cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, orheteroaryl group described herein. The term “polyether” as used hereinis represented by the formula -(A¹O-A²O)_(a)—, where A¹ and A² can be,independently, an optionally substituted alkyl, cycloalkyl, alkenyl,cycloalkenyl, alkynyl, cycloalkynyl, aryl, or heteroaryl group describedherein and “a” is an integer of from 1 to 500. Examples of polyethergroups include polyethylene oxide, polypropylene oxide, and polybutyleneoxide.

The term “halide” as used herein refers to the halogens fluorine,chlorine, bromine, and iodine.

The term “heterocycle,” as used herein refers to single and multi-cyclicaromatic or non-aromatic ring systems in which at least one of the ringmembers is other than carbon. Heterocycle includes pyridinde,pyrimidine, furan, thiophene, pyrrole, isoxazole, isothiazole, pyrazole,oxazole, thiazole, imidazole, oxazole, including, 1,2,3-oxadiazole,1,2,5-oxadiazole and 1,3,4-oxadiazole, thiadiazole, including,1,2,3-thiadiazole, 1,2,5-thiadiazole, and 1,3,4-thiadiazole, triazole,including, 1,2,3-triazole, 1,3,4-triazole, tetrazole, including1,2,3,4-tetrazole and 1,2,4,5-tetrazole, pyridine, pyridazine,pyrimidine, pyrazine, triazine, including 1,2,4-triazine and1,3,5-triazine, tetrazine, including 1,2,4,5-tetrazine, pyrrolidine,piperidine, piperazine, morpholine, azetidine, tetrahydropyran,tetrahydrofuran, dioxane, and the like.

The term “hydroxyl” as used herein is represented by the formula —OH.

The term “ketone” as used herein is represented by the formula A¹C(O)A²,where A¹ and A² can be, independently, an optionally substituted alkyl,cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, orheteroaryl group as described herein.

The term “azide” as used herein is represented by the formula —N₃.

The term “nitro” as used herein is represented by the formula —NO₂.

The term “nitrile” as used herein is represented by the formula —CN.

The term “silyl” as used herein is represented by the formula —SiA¹A²A³,where A¹, A², and A³ can be, independently, hydrogen or an optionallysubstituted alkyl, cycloalkyl, alkoxy, alkenyl, cycloalkenyl, alkynyl,cycloalkynyl, aryl, or heteroaryl group as described herein.

The term “sulfo-oxo” as used herein is represented by the formulas—S(O)A¹, S(O)₂A¹, —OS(O)₂A¹, or —OS(O)₂OA¹, where A¹ can be hydrogen oran optionally substituted alkyl, cycloalkyl, alkenyl, cycloalkenyl,alkynyl, cycloalkynyl, aryl, or heteroaryl group as described herein.Throughout this specification “S(O)” is a short hand notation for S═O.The term “sulfonyl” is used herein to refer to the sulfo-oxo grouprepresented by the formula —S(O)₂A¹, where A¹ can be hydrogen or anoptionally substituted alkyl, cycloalkyl, alkenyl, cycloalkenyl,alkynyl, cycloalkynyl, aryl, or heteroaryl group as described herein.The term “sulfone” as used herein is represented by the formulaA¹S(O)₂A², where A¹ and A² can be, independently, an optionallysubstituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl,cycloalkynyl, aryl, or heteroaryl group as described herein. The term“sulfoxide” as used herein is represented by the formula A¹S(O)A², whereA¹ and A² can be, independently, an optionally substituted alkyl,cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl, orheteroaryl group as described herein.

The term “thiol” as used herein is represented by the formula —SH.

“R¹,” “R²,” “R³,” “R^(n),” where n is an integer, as used herein can,independently, possess one or more of the groups listed above. Forexample, if R¹ is a straight chain alkyl group, one of the hydrogenatoms of the alkyl group can optionally be substituted with a hydroxylgroup, an alkoxy group, an alkyl group, a halide, and the like.Depending upon the groups that are selected, a first group can beincorporated within second group or, alternatively, the first group canbe pendant (i.e., attached) to the second group. For example, with thephrase “an alkyl group comprising an amino group,” the amino group canbe incorporated within the backbone of the alkyl group. Alternatively,the amino group can be attached to the backbone of the alkyl group. Thenature of the group(s) that is (are) selected will determine if thefirst group is embedded or attached to the second group.

As described herein, compounds of the invention may contain “optionallysubstituted” moieties. In general, the term “substituted,” whetherpreceded by the term “optionally” or not, means that one or morehydrogens of the designated moiety are replaced with a suitablesubstituent. Unless otherwise indicated, an “optionally substituted”group may have a suitable substituent at each substitutable position ofthe group, and when more than one position in any given structure may besubstituted with more than one substituent selected from a specifiedgroup, the substituent may be either the same or different at everyposition. Combinations of substituents envisioned by this invention arepreferably those that result in the formation of stable or chemicallyfeasible compounds. In is also contemplated that, in certain aspects,unless expressly indicated to the contrary, individual substituents canbe further optionally substituted (i.e., further substituted orunsubstituted).

The term “stable,” as used herein, refers to compounds that are notsubstantially altered when subjected to conditions to allow for theirproduction, detection, and, in certain aspects, their recovery,purification, and use for one or more of the purposes disclosed herein.

Suitable monovalent substituents on a substitutable carbon atom of an“optionally substituted” group are independently halogen;—(CH₂)₀₋₄R^(◯); —(CH₂)₀₋₄OR^(◯); —O(CH₂)₀₋₄R^(◯), —O—(CH₂)₀₋₄C(O)OR^(◯);—(CH₂)₀₋₄CH(OR^(◯))₂; —(CH₂)₀₋₄SR^(◯); —(CH₂)₀₋₄Ph, which may besubstituted with R^(◯); —(CH₂)₀₋₄O(CH₂)₀₋₁Ph which may be substitutedwith R^(◯); —CH═CHPh, which may be substituted with R^(◯);—(CH₂)₀₋₄O(CH₂)₀₋₁-pyridyl which may be substituted with R^(◯); —NO₂;—CN; —N₃; —(CH₂)₀₋₄N(R^(◯))₂; —(CH₂)₀₋₄N(R^(◯))C(O)R^(◯);—N(R^(◯))C(S)R^(◯); —(CH₂)₀₋₄N(R^(◯))C(O)NR^(◯) ₂; —N(R^(◯))C(S)NR^(◯)₂; —(CH₂)₀₋₄N(R^(◯))C(O)OR^(◯); —N(R^(◯))N(R^(◯))C(O)R^(◯);—N(R^(◯))N(R^(◯))C(O)NR^(◯) ₂; —N(R^(◯))N(R^(◯))C(O)OR^(◯);—(CH₂)₀₋₄C(O)R^(◯); —C(S)R^(◯); —(CH₂)₀₋₄C(O)OR^(◯);—(CH₂)₀₋₄C(O)SR^(◯); —(CH₂)₀₋₄—C(O)OSiR^(◯) ₃; —(CH₂)₀₋₄C(O)R^(◯);—OC(O)(CH₂)₀₋₄SR—, SC(S)SR^(◯); —(CH₂)₀₋₄SC(O)R^(◯); —(CH₂)₀₋₄C(O)NR^(◯)₂; —C(S)NR^(◯) ₂; —C(S)SR^(◯); —SC(S)SR^(◯), —(CH₂)₀₋₄C(O)NR^(◯) ₂;—C(O)N(OR)R^(◯); —C(O)C(O)R^(◯); —C(O)CH₂C(O)R^(◯); —C(NOR^(◯))R^(◯);—(CH₂)₀₋₄SSR^(◯); —(CH₂)₀₋₄S(O)₂R^(◯); —(CH₂)₀₋₄S(O)₂OR^(◯);—(CH₂)₀₋₄S(O)₂R^(◯); —S(O)₂NR^(◯) ₂; —(CH₂)₀₋₄S(O)R^(◯);—N(R^(◯))S(O)₂NR^(◯) ₂; —N(R^(◯))S(O)₂R^(◯); —N(OR^(◯))R^(◯);—C(NH)NR^(◯) ₂; —P(O)₂R^(◯); —P(O)R^(◯) ₂; —OP(O)R^(◯) ₂;—OP(O)(OR^(◯))₂; SiR^(◯) ₃; —(C₁₋₄ straight or branchedalkylene)O—N(R^(◯))₂; or —(C₁₋₄ straight or branchedalkylene)C(O)O—N(R^(◯))₂, wherein each R^(◯) may be substituted asdefined below and is independently hydrogen, C₁₋₆ aliphatic, —CH₂Ph,—O(CH₂)₀₋₁Ph, —CH₂-(5-6 membered heteroaryl ring), or a 5-6-memberedsaturated, partially unsaturated, or aryl ring having 0-4 heteroatomsindependently selected from nitrogen, oxygen, or sulfur, or,notwithstanding the definition above, two independent occurrences ofR^(◯), taken together with their intervening atom(s), form a3-12-membered saturated, partially unsaturated, or aryl mono- orbicyclic ring having 0-4 heteroatoms independently selected fromnitrogen, oxygen, or sulfur, which may be substituted as defined below.

Suitable monovalent substituents on R^(◯) (or the ring formed by takingtwo independent occurrences of R^(◯) together with their interveningatoms), are independently halogen, —(CH₂)₀₋₂R^(●), -(haloR^(●)),—(CH₂)₀₋₂OH, —(CH₂)₀₋₂OR^(●), —(CH₂)₀₋₂CH(OR^(●))₂; —O(haloR^(●)), —CN,—N₃, —(CH₂)₀₋₂C(O)R^(●), —(CH₂)₀₋₂C(O)OH, —(CH₂)₀₋₂C(O)OR^(●),—(CH₂)₀₋₂SR^(●), —(CH₂)₀₋₂SH, —(CH₂)₀₋₂NH₂, —(CH₂)₀₋₂NHR^(●),—(CH₂)₀₋₂NR^(●) ₂, —NO₂, —SiR^(●) ₃, —OSiR^(●)3, —C(O)SR^(●), —(C₁₋₄straight or branched alkylene)C(O)OR^(●), or —SSR^(●) wherein each R^(●)is unsubstituted or where preceded by “halo” is substituted only withone or more halogens, and is independently selected from C₁₋₄ aliphatic,—CH₂Ph, —O(CH₂)₀₋₁Ph, or a 5-6-membered saturated, partiallyunsaturated, or aryl ring having 0-4 heteroatoms independently selectedfrom nitrogen, oxygen, or sulfur. Suitable divalent substituents on asaturated carbon atom of R^(◯) include ═O and ═S.

Suitable divalent substituents on a saturated carbon atom of an“optionally substituted” group include the following: ═O, ═S, ═NNR*₂,═NNHC(O)R*, ═NNHC(O)OR*, ═NNHS(O)₂R*, ═NR*, ═NOR*, —O(C(R*₂))₂₋₃O—, or—S(C(R*₂))₂₋₃S—, wherein each independent occurrence of R* is selectedfrom hydrogen, C₁₋₆ aliphatic which may be substituted as defined below,or an unsubstituted 5-6-membered saturated, partially unsaturated, oraryl ring having 0-4 heteroatoms independently selected from nitrogen,oxygen, or sulfur. Suitable divalent substituents that are bound tovicinal substitutable carbons of an “optionally substituted” groupinclude: —O(CR*₂)₂₋₃O—, wherein each independent occurrence of R* isselected from hydrogen, C₁₋₆ aliphatic which may be substituted asdefined below, or an unsubstituted 5-6-membered saturated, partiallyunsaturated, or aryl ring having 0-4 heteroatoms independently selectedfrom nitrogen, oxygen, or sulfur.

Suitable substituents on the aliphatic group of R* include halogen,—R^(●), -(haloR^(●)), —OH, —OR^(●), —O(haloR^(●)), —CN, —C(O)OH,—C(O)OR^(●), —NH₂, —NHR^(●), —NR^(●) ₂, or —NO₂, wherein each R^(●) isunsubstituted or where preceded by “halo” is substituted only with oneor more halogens, and is independently C₁₋₄ aliphatic, —CH₂Ph,—O(CH₂)₀₋₁Ph, or a 5-6-membered saturated, partially unsaturated, oraryl ring having 0-4 heteroatoms independently selected from nitrogen,oxygen, or sulfur.

Suitable substituents on a substitutable nitrogen of an “optionallysubstituted” group include —R^(†), —NR^(†) ₂, —C(O)R^(†), —C(O)OR^(†),—C(O)C(O)R^(†), —C(O)CH₂C(O)R^(†), —S(O)₂R^(†), —S(O)₂NR^(†) ₂,—C(S)NR^(†) ₂, —C(NH)NR^(†) ₂, or —N(R^(†))S(O)₂R^(†); wherein eachR^(†) is independently hydrogen, C₁ aliphatic which may be substitutedas defined below, unsubstituted —OPh, or an unsubstituted 5-6-memberedsaturated, partially unsaturated, or aryl ring having 0-4 heteroatomsindependently selected from nitrogen, oxygen, or sulfur, or,notwithstanding the definition above, two independent occurrences ofR^(†), taken together with their intervening atom(s) form anunsubstituted 3-12-membered saturated, partially unsaturated, or arylmono- or bicyclic ring having 0-4 heteroatoms independently selectedfrom nitrogen, oxygen, or sulfur.

Suitable substituents on the aliphatic group of R^(†) are independentlyhalogen, —R^(●), -(haloR^(●)), —OH, —OR*, —O(haloR^(●)), —CN, —C(O)OH,—C(O)OR^(●), —NH₂, —NHR^(●), —NR^(●) ₂, or —NO₂, wherein each R^(●) isunsubstituted or where preceded by “halo” is substituted only with oneor more halogens, and is independently C₁₋₄ aliphatic, —CH₂Ph,—O(CH₂)₀₋₁Ph, or a 5-6-membered saturated, partially unsaturated, oraryl ring having 0-4 heteroatoms independently selected from nitrogen,oxygen, or sulfur.

The term “organic residue” defines a carbon containing residue, i.e., aresidue comprising at least one carbon atom, and includes but is notlimited to the carbon-containing groups, residues, or radicals definedhereinabove. Organic residues can contain various heteroatoms, or bebonded to another molecule through a heteroatom, including oxygen,nitrogen, sulfur, phosphorus, or the like. Examples of organic residuesinclude but are not limited alkyl or substituted alkyls, alkoxy orsubstituted alkoxy, mono or di-substituted amino, amide groups, etc.Organic residues can preferably comprise 1 to 18 carbon atoms, 1 to 15,carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, 1 to 6 carbonatoms, or 1 to 4 carbon atoms. In a further aspect, an organic residuecan comprise 2 to 18 carbon atoms, 2 to 15, carbon atoms, 2 to 12 carbonatoms, 2 to 8 carbon atoms, 2 to 4 carbon atoms, or 2 to 4 carbon atoms.

A very close synonym of the term “residue” is the term “radical,” whichas used in the specification and concluding claims, refers to afragment, group, or substructure of a molecule described herein,regardless of how the molecule is prepared. For example, a2,4-thiazolidinedione radical in a particular compound has thestructure:

regardless of whether thiazolidinedione is used to prepare the compound.In some embodiments the radical (for example an alkyl) can be furthermodified (i.e., substituted alkyl) by having bonded thereto one or more“substituent radicals.” The number of atoms in a given radical is notcritical to the present invention unless it is indicated to the contraryelsewhere herein.

“Organic radicals,” as the term is defined and used herein, contain oneor more carbon atoms. An organic radical can have, for example, 1-26carbon atoms, 1-18 carbon atoms, 1-12 carbon atoms, 1-8 carbon atoms,1-6 carbon atoms, or 1-4 carbon atoms. In a further aspect, an organicradical can have 2-26 carbon atoms, 2-18 carbon atoms, 2-12 carbonatoms, 2-8 carbon atoms, 2-6 carbon atoms, or 2-4 carbon atoms. Organicradicals often have hydrogen bound to at least some of the carbon atomsof the organic radical. One example, of an organic radical thatcomprises no inorganic atoms is a 5, 6, 7, 8-tetrahydro-2-naphthylradical. In some embodiments, an organic radical can contain 1-10inorganic heteroatoms bound thereto or therein, including halogens,oxygen, sulfur, nitrogen, phosphorus, and the like. Examples of organicradicals include but are not limited to an alkyl, substituted alkyl,cycloalkyl, substituted cycloalkyl, mono-substituted amino,di-substituted amino, acyloxy, cyano, carboxy, carboalkoxy,alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide,substituted dialkylcarboxamide, alkylsulfonyl, alkylsulfinyl, thioalkyl,thiohaloalkyl, alkoxy, substituted alkoxy, haloalkyl, haloalkoxy, aryl,substituted aryl, heteroaryl, heterocyclic, or substituted heterocyclicradicals, wherein the terms are defined elsewhere herein. A fewnon-limiting examples of organic radicals that include heteroatomsinclude alkoxy radicals, trifluoromethoxy radicals, acetoxy radicals,dimethylamino radicals and the like.

“Inorganic radicals,” as the term is defined and used herein, contain nocarbon atoms and therefore comprise only atoms other than carbon.Inorganic radicals comprise bonded combinations of atoms selected fromhydrogen, nitrogen, oxygen, silicon, phosphorus, sulfur, selenium, andhalogens such as fluorine, chlorine, bromine, and iodine, which can bepresent individually or bonded together in their chemically stablecombinations. Inorganic radicals have 10 or fewer, or preferably one tosix or one to four inorganic atoms as listed above bonded together.Examples of inorganic radicals include, but not limited to, amino,hydroxy, halogens, nitro, thiol, sulfate, phosphate, and like commonlyknown inorganic radicals. The inorganic radicals do not have bondedtherein the metallic elements of the periodic table (such as the alkalimetals, alkaline earth metals, transition metals, lanthanide metals, oractinide metals), although such metal ions can sometimes serve as apharmaceutically acceptable cation for anionic inorganic radicals suchas a sulfate, phosphate, or like anionic inorganic radical. Inorganicradicals do not comprise metalloids elements such as boron, aluminum,gallium, germanium, arsenic, tin, lead, or tellurium, or the noble gaselements, unless otherwise specifically indicated elsewhere herein.

Compounds described herein can contain one or more double bonds and,thus, potentially give rise to cis/trans (E/Z) isomers, as well as otherconformational isomers. Unless stated to the contrary, the inventionincludes all such possible isomers, as well as mixtures of such isomers.

Unless stated to the contrary, a formula with chemical bonds shown onlyas solid lines and not as wedges or dashed lines contemplates eachpossible isomer, e.g., each enantiomer and diastereomer, and a mixtureof isomers, such as a racemic or scalemic mixture. Compounds describedherein can contain one or more asymmetric centers and, thus, potentiallygive rise to diastereomers and optical isomers. Unless stated to thecontrary, the present invention includes all such possible diastereomersas well as their racemic mixtures, their substantially pure resolvedenantiomers, all possible geometric isomers, and pharmaceuticallyacceptable salts thereof. Mixtures of stereoisomers, as well as isolatedspecific stereoisomers, are also included. During the course of thesynthetic procedures used to prepare such compounds, or in usingracemization or epimerization procedures known to those skilled in theart, the products of such procedures can be a mixture of stereoisomers.

Many organic compounds exist in optically active forms having theability to rotate the plane of plane-polarized light. In describing anoptically active compound, the prefixes D and L or R and S are used todenote the absolute configuration of the molecule about its chiralcenter(s). The prefixes d and 1 or (+) and (−) are employed to designatethe sign of rotation of plane-polarized light by the compound, with (−)or meaning that the compound is levorotatory. A compound prefixed with(+) or d is dextrorotatory. For a given chemical structure, thesecompounds, called stereoisomers, are identical except that they arenon-superimposable mirror images of one another. A specific stereoisomercan also be referred to as an enantiomer, and a mixture of such isomersis often called an enantiomeric mixture. A 50:50 mixture of enantiomersis referred to as a racemic mixture. Many of the compounds describedherein can have one or more chiral centers and therefore can exist indifferent enantiomeric forms. If desired, a chiral carbon can bedesignated with an asterisk (*). When bonds to the chiral carbon aredepicted as straight lines in the disclosed formulas, it is understoodthat both the (R) and (S) configurations of the chiral carbon, and henceboth enantiomers and mixtures thereof, are embraced within the formula.As is used in the art, when it is desired to specify the absoluteconfiguration about a chiral carbon, one of the bonds to the chiralcarbon can be depicted as a wedge (bonds to atoms above the plane) andthe other can be depicted as a series or wedge of short parallel linesis (bonds to atoms below the plane). The Cahn-Inglod-Prelog system canbe used to assign the (R) or (S) configuration to a chiral carbon.

When the disclosed compounds contain one chiral center, the compoundsexist in two enantiomeric forms. Unless specifically stated to thecontrary, a disclosed compound includes both enantiomers and mixtures ofenantiomers, such as the specific 50:50 mixture referred to as a racemicmixture. The enantiomers can be resolved by methods known to thoseskilled in the art, such as formation of diastereoisomeric salts whichmay be separated, for example, by crystallization (see, CRC Handbook ofOptical Resolutions via Diastereomeric Salt Formation by David Kozma(CRC Press, 2001)); formation of diastereoisomeric derivatives orcomplexes which may be separated, for example, by crystallization,gas-liquid or liquid chromatography; selective reaction of oneenantiomer with an enantiomer-specific reagent, for example enzymaticesterification; or gas-liquid or liquid chromatography in a chiralenvironment, for example on a chiral support for example silica with abound chiral ligand or in the presence of a chiral solvent. It will beappreciated that where the desired enantiomer is converted into anotherchemical entity by one of the separation procedures described above, afurther step can liberate the desired enantiomeric form. Alternatively,specific enantiomers can be synthesized by asymmetric synthesis usingoptically active reagents, substrates, catalysts or solvents, or byconverting one enantiomer into the other by asymmetric transformation.

Designation of a specific absolute configuration at a chiral carbon in adisclosed compound is understood to mean that the designatedenantiomeric form of the compounds can be provided in enantiomericexcess (e.e.). Enantiomeric excess, as used herein, is the presence of aparticular enantiomer at greater than 50%, for example, greater than60%, greater than 70%, greater than 75%, greater than 80%, greater than85%, greater than 90%, greater than 95%, greater than 98%, or greaterthan 99%. In one aspect, the designated enantiomer is substantially freefrom the other enantiomer. For example, the “R” forms of the compoundscan be substantially free from the “S” forms of the compounds and are,thus, in enantiomeric excess of the “S” forms. Conversely, “S” forms ofthe compounds can be substantially free of “R” forms of the compoundsand are, thus, in enantiomeric excess of the “R” forms.

When a disclosed compound has two or more chiral carbons, it can havemore than two optical isomers and can exist in diastereoisomeric forms.For example, when there are two chiral carbons, the compound can have upto four optical isomers and two pairs of enantiomers ((S,S)/(R,R) and(R,S)/(S,R)). The pairs of enantiomers (e.g., (S,S)/(R,R)) are mirrorimage stereoisomers of one another. The stereoisomers that are notmirror-images (e.g., (S,S) and (R,S)) are diastereomers. Thediastereoisomeric pairs can be separated by methods known to thoseskilled in the art, for example chromatography or crystallization andthe individual enantiomers within each pair may be separated asdescribed above. Unless otherwise specifically excluded, a disclosedcompound includes each diastereoisomer of such compounds and mixturesthereof.

Compounds described herein comprise atoms in both their natural isotopicabundance and in non-natural abundance. The disclosed compounds can beisotopically-labeled or isotopically-substituted compounds identical tothose described, but for the fact that one or more atoms are replaced byan atom having an atomic mass or mass number different from the atomicmass or mass number typically found in nature. Examples of isotopes thatcan be incorporated into compounds of the invention include isotopes ofhydrogen, carbon, nitrogen, oxygen, phosphorous, fluorine and chlorine,such as ²H, ³H, ¹³C, ¹⁴C, ¹⁵N, ¹⁸O, ¹⁷O, ³⁵S, ¹⁸F and ³⁶Cl,respectively. Compounds further comprise prodrugs thereof, andpharmaceutically acceptable salts of said compounds or of said prodrugswhich contain the aforementioned isotopes and/or other isotopes of otheratoms are within the scope of this invention. Certainisotopically-labeled compounds of the present invention, for examplethose into which radioactive isotopes such as ³H and ¹⁴C areincorporated, are useful in drug and/or substrate tissue distributionassays. Tritiated, i.e., ³H, and carbon-14, i.e., ¹⁴C, isotopes areparticularly preferred for their ease of preparation and detectability.Further, substitution with heavier isotopes such as deuterium, i.e., ²H,can afford certain therapeutic advantages resulting from greatermetabolic stability, for example increased in vivo half-life or reduceddosage requirements and, hence, may be preferred in some circumstances.Isotopically labeled compounds of the present invention and prodrugsthereof can generally be prepared by carrying out the procedures below,by substituting a readily available isotopically labeled reagent for anon-isotopically labeled reagent.

The compounds described in the invention can be present as a solvate.“Solvates” refers to the compound formed by the interaction of a solventand a solute and includes hydrates. Solvates are usually crystallinesolid adducts containing solvent molecules within the crystal structure,in either stoichiometric or nonstoichiometric proportions. In somecases, the solvent used to prepare the solvate is an aqueous solution,and the solvate is then often referred to as a hydrate. The compoundscan be present as a hydrate, which can be obtained, for example, bycrystallization from a solvent or from aqueous solution. In thisconnection, one, two, three or any arbitrary number of solvate or watermolecules can combine with the compounds according to the invention toform solvates and hydrates. Unless stated to the contrary, the inventionincludes all such possible solvates.

The term “co-crystal” means a physical association of two or moremolecules which owe their stability through non-covalent interaction.One or more components of this molecular complex provide a stableframework in the crystalline lattice. In certain instances, the guestmolecules are incorporated in the crystalline lattice as anhydrates orsolvates, see e.g. “Crystal Engineering of the Composition ofPharmaceutical Phases. Do Pharmaceutical Co-crystals Represent a NewPath to Improved Medicines?” Almarasson, O., et. al., The Royal Societyof Chemistry, 1889-1896, 2004. Examples of co-crystals includep-toluenesulfonic acid and benzenesulfonic acid.

It is known that chemical substances form solids which are present indifferent states of order which are termed polymorphic forms ormodifications. The different modifications of a polymorphic substancecan differ greatly in their physical properties. The compounds accordingto the invention can be present in different polymorphic forms, with itbeing possible for particular modifications to be metastable. Unlessstated to the contrary, the invention includes all such possiblepolymorphic forms.

In some aspects, a structure of a compound can be represented by aformula:

which is understood to be equivalent to a formula:

wherein n is typically an integer. That is, R^(n) is understood torepresent five independent substituents, R^(n(a)), R^(n(b)), R^(n(c)),R^(n(d)), R^(n(e)). In each such case, each of the five R^(n) can behydrogen or a recited substituent. By “independent substituents,” it ismeant that each R substituent can be independently defined. For example,if in one instance R^(n(a)) is halogen, then R^(n(b)) is not necessarilyhalogen in that instance.

In some yet further aspects, a structure of a compound can berepresented by a formula:

wherein R^(y) represents, for example, 0-2 independent substituentsselected from A¹, A², and A³, which is understood to be equivalent tothe groups of formulae:

-   -   wherein R^(y) represents 0 independent substituents

-   -   wherein R^(y) represents 1 independent substituent

-   -   wherein R^(y) represents 2 independent substituents

Again, by “independent substituents,” it is meant that each Rsubstituent can be independently defined. For example, if in oneinstance R^(y1) is A¹, then R^(y2) is not necessarily A¹ in thatinstance.

In some further aspects, a structure of a compound can be represented bya formula,

wherein, for example, Q comprises three substituents independentlyselected from hydrogen and A, which is understood to be equivalent to aformula:

Again, by “independent substituents,” it is meant that each Qsubstituent is independently defined as hydrogen or A, which isunderstood to be equivalent to the groups of formulae:

-   -   wherein Q comprises three substituents independently selected        from H and A

Certain materials, compounds, compositions, and components disclosedherein can be obtained commercially or readily synthesized usingtechniques generally known to those of skill in the art. For example,the starting materials and reagents used in preparing the disclosedcompounds and compositions are either available from commercialsuppliers such as Aldrich Chemical Co., (Milwaukee, Wis.), AcrosOrganics (Morris Plains, N.J.), Fisher Scientific (Pittsburgh, Pa.), orSigma (St. Louis, Mo.) or are prepared by methods known to those skilledin the art following procedures set forth in references such as Fieserand Fieser's Reagents for Organic Synthesis, Volumes 1-17 (John Wileyand Sons, 1991); Rodd's Chemistry of Carbon Compounds, Volumes 1-5 andSupplementals (Elsevier Science Publishers, 1989); Organic Reactions,Volumes 1-40 (John Wiley and Sons, 1991); March's Advanced OrganicChemistry, (John Wiley and Sons, 4th Edition); and Larock'sComprehensive Organic Transformations (VCH Publishers Inc., 1989).

Unless otherwise expressly stated, it is in no way intended that anymethod set forth herein be construed as requiring that its steps beperformed in a specific order. Accordingly, where a method claim doesnot actually recite an order to be followed by its steps or it is nototherwise specifically stated in the claims or descriptions that thesteps are to be limited to a specific order, it is no way intended thatan order be inferred, in any respect. This holds for any possiblenon-express basis for interpretation, including: matters of logic withrespect to arrangement of steps or operational flow; plain meaningderived from grammatical organization or punctuation; and the number ortype of embodiments described in the specification.

Disclosed are the components to be used to prepare the compositions ofthe invention as well as the compositions themselves to be used withinthe methods disclosed herein. These and other materials are disclosedherein, and it is understood that when combinations, subsets,interactions, groups, etc. of these materials are disclosed that whilespecific reference of each various individual and collectivecombinations and permutation of these compounds cannot be explicitlydisclosed, each is specifically contemplated and described herein. Forexample, if a particular compound is disclosed and discussed and anumber of modifications that can be made to a number of moleculesincluding the compounds are discussed, specifically contemplated is eachand every combination and permutation of the compound and themodifications that are possible unless specifically indicated to thecontrary. Thus, if a class of molecules A, B, and C are disclosed aswell as a class of molecules D, E, and F and an example of a combinationmolecule, A-D is disclosed, then even if each is not individuallyrecited each is individually and collectively contemplated meaningcombinations, A-E, A-F, B-D, B-E, B-F, C-D, C-E, and C—F are considereddisclosed. Likewise, any subset or combination of these is alsodisclosed. Thus, for example, the sub-group of A-E, B-F, and C-E wouldbe considered disclosed. This concept applies to all aspects of thisapplication including, but not limited to, steps in methods of makingand using the compositions of the invention. Thus, if there are avariety of additional steps that can be performed it is understood thateach of these additional steps can be performed with any specificembodiment or combination of embodiments of the methods of theinvention.

It is understood that the compositions disclosed herein have certainfunctions. Disclosed herein are certain structural requirements forperforming the disclosed functions, and it is understood that there area variety of structures that can perform the same function that arerelated to the disclosed structures, and that these structures willtypically achieve the same result.

B. Compounds

In one aspect, the invention relates to compounds useful in treatingdisorders associated with dysregulation of TGF-β, in particular,cancers, immune dysfunction, and fibrotic conditions. In a furtheraspect, the invention relates to compounds useful in treating cancers,in particular, multiple myeloma and hematologic malignancies, immunedysfunction, and fibrotic disorders, in particular, liver fibrosis,diabetic nephropathy, muscular dystrophy, amyotrophic lateral sclerosis,PAH, NASH, epidermolysis bullosa, and glaucoma.

In one aspect, the disclosed compounds exhibit inhibition of TGF-β.

In one aspect, the compounds of the invention are useful in inhibitingTGF-β in a mammal. In a further aspect, the compounds of the inventionare useful in inhibiting TGF-β activity in at least one cell.

In one aspect, the compounds of the invention are useful in thetreatment of cancers, as further described herein.

In one aspect, the compounds of the invention are useful in thetreatment of fibrotic conditions including, but not limited to, liverfibrosis, diabetic nephropathy, muscular dystrophy, amyotrophic lateralsclerosis, PAH, NASH, epidermolysis bullosa, and glaucoma, and asfurther described herein.

In one aspect, the compounds of the invention are useful in thetreatment of immune dysfunction, as described herein.

It is contemplated that each disclosed derivative can be optionallyfurther substituted. It is also contemplated that any one or morederivative can be optionally omitted from the invention. It isunderstood that a disclosed compound can be provided by the disclosedmethods. It is also understood that the disclosed compounds can beemployed in the disclosed methods of using.

1. Structure

In one aspect, disclosed are compounds having a structure represented bya formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are compounds having a structure represented bya formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof.

In a further aspect, R³ is selected from NR^(20a)R^(20b), NHCOR²¹, andAr¹; wherein Ar¹, when present, is selected from aryl and heteroaryl andis substituted with 1-4 non-hydrogen groups independently selected fromhalogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy,—(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino]; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino.

In a further aspect, each of R², R^(5a), and R^(5b) is hydrogen.

In a further aspect, the compound has a structure represented by aformula selected from:

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound has a structure represented by aformula:

wherein R³⁰ is selected from —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4alkylamino).

In a further aspect, the compound has a structure represented by aformula:

wherein R³⁰ is selected from —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4alkylamino).

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound is selected from:

In a further aspect, the compound is:

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound has a structure represented by aformula:

In a further aspect, the compound is selected from:

In a further aspect, the compound is:

In a further aspect, the compound has a structure represented by aformula:

wherein n is selected from 1 and 2; and Y is selected from N and CH.

In a further aspect, the compound has a structure represented by aformula:

In one aspect, n is selected from 1, 2, 3, and 4. In a further aspect, nis selected from 1, 2, and 3. In a still further aspect, n is selectedfrom 1 and 2. In yet a further aspect, n is 4. In an even furtheraspect, n is 3. In a still further aspect, n is 2. In yet a furtheraspect, n is 1.

In one aspect, m is selected from 0 and 1. In a further aspect, m is 1.In a still further aspect, m is 0.

In one aspect, q is selected from 0 and 1. In a further aspect, q is 1.In a still further aspect, q is 0.

a. PG¹ Groups

In one aspect, PG¹ is an amine protecting group. Examples of amineprotecting groups include, but are not limited to, carbobenzyloxy,p-methoxybenzyl carbonyl, t-butyloxycarbonyl,9-fluorenylmethyloxycarbonyl, acetyl, benzoyl, benzyl, carbamate,p-methoxybenzyl, 3,4-dimethoxybenzyl, p-methoxyphenyl, tosyl, and4-nitrobenzenesulfonyl. In a still further aspect, PG¹ is9-fluorenylmethyloxycarbonyl.

b. X Groups

In one aspect, X is selected from O and S. In a further aspect, X is O.In a still further aspect, X is S.

c. Y Groups

In one aspect, Y is selected from N and CH. In a further aspect, X is N.In a still further aspect, X is CH.

d. R¹ Groups

In one aspect, R¹ is selected from C1-C8 alkyl and Cy¹. In a furtheraspect, R¹ is selected from C1-C4 alkyl and Cy¹. In a still furtheraspect, R¹ is selected from methyl, ethyl, n-propyl, i-propyl, and Cy¹.In yet a further aspect, R¹ is selected from methyl, ethyl, and Cy¹. Inan even further aspect, R¹ is selected from ethyl and Cy¹. In a stillfurther aspect, R¹ is selected from methyl and Cy¹.

In a further aspect, R¹ is C1-C8 alkyl. In a still further aspect, R¹ isselected from methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl,s-butyl, and t-butyl. In yet a further aspect, R¹ is selected frommethyl, ethyl, n-propyl, and i-propyl. In an even further aspect, R¹ isselected from methyl and ethyl. In a still further aspect, R¹ is ethyl.In yet a further aspect, R¹ is methyl.

In a further aspect, R¹ is Cy¹.

e. R² Groups

In one aspect, R² is selected from hydrogen, C1-C4 alkyl, and amineprotecting group. In a further aspect, R² is hydrogen.

In a further aspect, R² is selected from hydrogen, methyl, ethyl,n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-butyl, and amineprotecting group. In a still further aspect, R² is selected fromhydrogen, methyl, ethyl, n-propyl, i-propyl, and amine protecting group.In yet a further aspect, R² is selected from hydrogen, methyl, ethyl,and amine protecting group. In an even further aspect, R² is selectedfrom hydrogen, ethyl, and amine protecting group. In a still furtheraspect, R² is selected from hydrogen, methyl, and amine protectinggroup.

In a further aspect, R² is selected from hydrogen, methyl, ethyl,n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, and t-butyl. In a stillfurther aspect, R² is selected from hydrogen, methyl, ethyl, n-propyl,and i-propyl. In yet a further aspect, R² is selected from hydrogen,methyl, and ethyl. In an even further aspect, R² is selected fromhydrogen and ethyl. In a still further aspect, R² is selected fromhydrogen and methyl.

In a further aspect, R² is selected from methyl, ethyl, n-propyl,i-propyl, n-butyl, i-butyl, s-butyl, and t-butyl. In a still furtheraspect, R² is selected from methyl, ethyl, n-propyl, and i-propyl. Inyet a further aspect, R² is selected from methyl and ethyl. In an evenfurther aspect, R² is ethyl. In a still further aspect, R² is methyl.

In a further aspect, R² is amine protecting group. Examples of amineprotecting groups include, but are not limited to, carbobenzyloxy,p-methoxybenzyl carbonyl, t-butyloxycarbonyl,9-fluorenylmethyloxycarbonyl, acetyl, benzoyl, benzyl, carbamate,p-methoxybenzyl, 3,4-dimethoxybenzyl, p-methoxyphenyl, tosyl, and4-nitrobenzenesulfonyl. In a still further aspect, R² ist-butyloxycarbonyl.

In a further aspect, each of R² and R⁵ is hydrogen.

f. R³ Groups

In one aspect, R³ is selected from NR^(20a)R^(20b), NHCOR²¹, and Ar¹. Ina further aspect, R³ is selected from NR^(20a)R^(20b) and Ar¹.

In one aspect, R³ is selected from NR^(20a)R^(20b), NHCOR²¹, NHPG¹, andAr¹. In a further aspect, R³ is NHPG¹.

In a further aspect, R³ is NR^(20a)R^(20b). In a still further aspect,R³ is NHR^(20a). In yet a further aspect, R³ is —NH₂. In an even furtheraspect, R³ is NHCOR²¹.

In a further aspect, R³ is selected from NR^(20a)R^(20b) and NHCOR²¹. Ina still further aspect, R³ is selected from NHCOR²¹ and Ar.

In a further aspect, R³ is Ar¹.

g. R^(4a) and R^(4b) Groups

In one aspect, each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or each of R^(4a) and R^(4b) are optionallycovalently bonded together and, together with the intermediate atoms,comprise a 3- to 7-membered cycloalkyl substituted with 0-4 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino.

In a further aspect, each of R^(4a) and R^(4b) is independently selectedfrom hydrogen and C1-C4 alkyl. In a still further aspect, each of R^(4a)and R^(4b) is independently selected from hydrogen, methyl, ethyl,n-propyl, and i-propyl. In yet a further aspect, each of R^(4a) andR^(4b) is independently selected from hydrogen, methyl, and ethyl. In aneven further aspect, each of R^(4a) and R^(4b) is independently selectedfrom hydrogen and ethyl. In a still further aspect, each of R^(4a) andR^(4b) is independently selected from hydrogen and methyl.

In a further aspect, each of R^(4a) and R^(4b) is hydrogen.

In a further aspect, each of R^(4a) and R^(4b) is independently C1-C4alkyl. In a still further aspect, each of R^(4a) and R^(4b) isindependently selected from methyl, ethyl, n-propyl, and i-propyl. Inyet a further aspect, each of R^(4a) and R^(4b) is independentlyselected from methyl and ethyl. In an even further aspect, each ofR^(4a) and R^(4b) is ethyl. In a still further aspect, each of R^(4a)and R^(4b) is methyl.

In a further aspect, each of R^(4a) and R^(4b) are optionally covalentlybonded together and, together with the intermediate atoms, comprise a 3-to 7-membered cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-3 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,each of R^(4a) and R^(4b) are optionally covalently bonded together and,together with the intermediate atoms, comprise a 3- to 7-memberedcycloalkyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, each of R^(4a)and R^(4b) are optionally covalently bonded together and, together withthe intermediate atoms, comprise a 3- to 7-membered cycloalkylmonosubstituted with a non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,each of R^(4a) and R^(4b) are optionally covalently bonded together and,together with the intermediate atoms, comprise an unsubstituted 3- to7-membered cycloalkyl.

In a further aspect, each of R^(4a) and R^(4b) are optionally covalentlybonded together and, together with the intermediate atoms, comprise a 3-to 6-membered cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 5-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,each of R^(4a) and R^(4b) are optionally covalently bonded together and,together with the intermediate atoms, comprise a 3- to 4-memberedcycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 4- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,each of R^(4a) and R^(4b) are optionally covalently bonded together and,together with the intermediate atoms, comprise a 5- to 7-memberedcycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 6- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino.

In a further aspect, each of R^(4a) and R^(4b) are optionally covalentlybonded together and, together with the intermediate atoms, comprise acyclopropyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a cyclopropyl substituted with 0-3non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,each of R^(4a) and R^(4b) are optionally covalently bonded together and,together with the intermediate atoms, comprise a cyclopropyl substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,each of R^(4a) and R^(4b) are optionally covalently bonded together and,together with the intermediate atoms, comprise a cyclopropyl substitutedwith 0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, each of R^(4a)and R^(4b) are optionally covalently bonded together and, together withthe intermediate atoms, comprise a cyclopropyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise an unsubstituted cyclopropyl.

h. R^(5a) and R^(5b) Groups

In one aspect, each of R^(5a) and R^(5b) is independently selected fromhydrogen, C1-C4 alkyl, and Cy³.

In a further aspect, each of R^(5a) and R^(5b) is independently selectedfrom hydrogen, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl,s-butyl, t-butyl, and Cy³. In a still further aspect, each of R^(5a) andR^(5b) is independently selected from hydrogen, methyl, ethyl, n-propyl,i-propyl, and Cy³. In yet a further aspect, each of R^(5a) and R^(5b) isindependently selected from hydrogen, methyl, ethyl, and Cy³. In an evenfurther aspect, each of R^(5a) and R^(5b) is independently selected fromhydrogen, methyl, and Cy³.

In a further aspect, each of R^(5a) and R^(5b) is independently selectedfrom hydrogen, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl,s-butyl, and t-butyl. In a still further aspect, each of R^(5a) andR^(5b) is independently selected from hydrogen, methyl, ethyl, n-propyl,and i-propyl. In yet a further aspect, each of R^(5a) and R^(5b) isindependently selected from hydrogen, methyl, and ethyl. In an evenfurther aspect, each of R^(5a) and R^(5b) is independently selected fromhydrogen and ethyl. In a still further aspect, each of R^(5a) and R^(5b)is independently selected from hydrogen and methyl.

In a further aspect, each of R^(5a) and R^(5b) is independently selectedfrom methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, andt-butyl. In a still further aspect, each of R^(5a) and R^(5b) isindependently selected from methyl, ethyl, n-propyl, and i-propyl. Inyet a further aspect, each of R^(5a) and R^(5b) is independentlyselected from methyl and ethyl. In an even further aspect, each ofR^(5a) and R^(5b) is ethyl. In a still further aspect, each of R^(5a)and R^(5b) is methyl.

In a further aspect, each of R^(5a) and R^(5b) is independently selectedfrom hydrogen and Cy³. In a still further aspect, each of R^(5a) andR^(5b) is Cy³.

i. R⁶ Groups

In one aspect, R⁶ is selected from C1-C4 alkyl and Cy⁴. In a furtheraspect, R⁶ is selected from methyl, ethyl, n-propyl, i-propyl, and Cy⁴.In a still further aspect, R⁶ is selected from methyl, ethyl, and Cy⁴.In yet a further aspect, R⁶ is selected from methyl and Cy⁴. In an evenfurther aspect, R⁶ is selected from ethyl and Cy⁴.

In a further aspect, R⁶ is selected from methyl, ethyl, n-propyl,i-propyl, n-butyl, i-butyl, s-butyl, and t-butyl. In a still furtheraspect, R⁶ is selected from methyl, ethyl, n-propyl, and i-propyl. Inyet a further aspect, R⁶ is selected from methyl and ethyl. In an evenfurther aspect, R⁶ is methyl. In a still further aspect, R⁶ is ethyl.

In a further aspect, R⁶ is Cy⁴.

j. R^(20a) and R^(20b) Groups

In one aspect, each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group. In a further aspect, each of R^(20a) and R^(20b), whenpresent, is hydrogen.

In a further aspect, each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen and C1-C4 alkyl. In a still furtheraspect, each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, methyl, ethyl, n-propyl, and i-propyl. In yet afurther aspect, each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, methyl, and ethyl. In an evenfurther aspect, each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen and ethyl. In a still furtheraspect, each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen and methyl.

In a further aspect, each of R^(20a) and R^(20b), when present, isindependently selected from methyl, ethyl, n-propyl, i-propyl, n-butyl,i-butyl, s-butyl, and t-butyl. In a still further aspect, each ofR^(20a) and R^(20b), when present, is independently selected frommethyl, ethyl, n-propyl, and i-propyl. In yet a further aspect, each ofR^(20a) and R^(20b), when present, is independently selected from methyland ethyl. In an even further aspect, each of R^(20a) and R^(20b) whenpresent, is ethyl. In a still further aspect, each of R^(20a) andR^(20b), when present, is methyl.

In a further aspect, each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen and Cy². In a still further aspect,each of R^(20a) and R^(20b), when present, is Cy².

In a further aspect, each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen and amine protecting group.Examples of amine protecting groups include, but are not limited to,carbobenzyloxy, p-methoxybenzyl carbonyl, t-butyloxycarbonyl,9-fluorenylmethyloxycarbonyl, acetyl, benzoyl, benzyl, carbamate,p-methoxybenzyl, 3,4-dimethoxybenzyl, p-methoxyphenyl, tosyl, and4-nitrobenzenesulfonyl. In a still further aspect, each of R^(20a) andR^(20b), when present, is independently selected from hydrogen andt-butyloxycarbonyl.

k. R²¹ Groups

In one aspect, R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino.

In a further aspect, R²¹, when present, is selected from methyl, ethyl,n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, and t-butyl. In a stillfurther aspect, R²¹, when present, is selected from methyl, ethyl,n-propyl, and i-propyl. In yet a further aspect, R²¹, when present, isselected from methyl and ethyl. In an even further aspect, R²¹, whenpresent, is ethyl. In a still further aspect, R²¹, when present, ismethyl.

In a further aspect, R²¹, when present, is selected from cycloalkyl andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, R²¹, when present, is selectedfrom cycloalkyl and heterocycloalkyl and is substituted with 0-3non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,R²¹, when present, is selected from cycloalkyl and heterocycloalkyl andis substituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, R²¹, when present, is selected from cycloalkyl andheterocycloalkyl and is substituted with 0-1 non-hydrogen group selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, R²¹, when present, is selected from cycloalkyl andheterocycloalkyl and is monosubstituted with a non-hydrogen groupselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, R²¹, when present, is selectedfrom cycloalkyl and heterocycloalkyl and is unsubstituted.

In a further aspect, R²¹, when present, is cycloalkyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,R²¹, when present, is cycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, R²¹, when present,is cycloalkyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, R²¹, when present, iscycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, R²¹, when present, is cycloalkyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, R²¹, when present,is unsubstituted cycloalkyl.

In a further aspect, R²¹, when present, is heterocycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,R²¹, when present, is heterocycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, R²¹, when present,is heterocycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, R²¹, when present, isheterocycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, R²¹, when present, is heterocycloalkyl monosubstitutedwith a non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, R²¹, when present,is unsubstituted heterocycloalkyl.

In a further aspect, R²¹, when present, is C3-C8 cycloalkyl. In a stillfurther aspect, R²¹, when present, is C2-C7 heterocycloalkyl.

l. R³⁰ Groups

In one aspect, R³⁰ is selected from —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4alkylamino). In a further aspect, R³⁰ is selected from —CH₂NH₂, —NH₂,—CH₂(C1-C4 alkylamino), and (C1-C4) alkylamino. In a still furtheraspect, R³⁰ is selected from —CH₂NH₂ and —CH₂(C1-C4 alkylamino). In yeta further aspect, R³⁰ is selected from —NH₂ and (C1-C4) alkylamino.

In a further aspect, R³⁰ is —(CH₂)_(m)NH₂. In a still further aspect,R³⁰ is —CH₂NH₂. In yet a further aspect, R³⁰ is —NH₂.

In a further aspect, R³⁰ is —(CH₂)_(m)(C1-C4 alkylamino). In a stillfurther aspect, R³⁰ is —CH₂(C1-C4 alkylamino). In yet a further aspect,R³⁰ is (C1-C4) alkylamino.

m. Cy¹ Groups

In one aspect, Cy¹, when present, is selected from C3-C8 cycloalkyl andaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a further aspect, Cy¹, when present, is selected fromC3-C8 cycloalkyl and aryl and is substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy¹, whenpresent, is selected from C3-C8 cycloalkyl and aryl and is substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,Cy¹, when present, is selected from C3-C8 cycloalkyl and aryl and issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,Cy¹, when present, is selected from C3-C8 cycloalkyl and aryl and ismonosubstituted with a non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy¹, when present, is selected from C3-C8 cycloalkyl and aryl and isunsubstituted.

In a further aspect, Cy¹, when present, is C3-C8 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy¹, when present, is C3-C8 cycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy¹, when present,is C3-C8 cycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy¹, when present, is C3-C8cycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy¹, when present, is C3-C8 cycloalkyl monosubstitutedwith a non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy¹, when present,is unsubstituted C3-C8 cycloalkyl.

In a further aspect, Cy¹, when present, is C3-C7 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy¹, when present, is C3-C6 cycloalkyl substituted with 0-4 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy¹, when present,is C3-C5 cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy¹, when present, is C3-C4cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy¹, when present, is C4-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy¹, when present, is C5-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy¹, when present, is C6-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy¹, when present, is C7-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino.

In a further aspect, Cy¹, when present, is cyclohexyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy¹, when present, is cyclohexyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy¹, when present,is cyclohexyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy¹, when present, iscyclohexyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy¹, when present, is cyclohexyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy¹, when present,is unsubstituted cyclohexyl.

In a further aspect, Cy¹, when present, is aryl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy¹, when present, is aryl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy¹, when present, is arylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy¹, when present, is aryl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy¹, whenpresent, is aryl monosubstituted with a non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet afurther aspect, Cy¹, when present, is unsubstituted aryl.

In a further aspect, Cy¹, when present, is phenyl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy¹, when present, is phenyl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy¹, when present, is phenylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy¹, when present, is phenyl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy¹, whenpresent, is phenyl monosubstituted with a non-hydrogen group selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yeta further aspect, Cy¹, when present, is unsubstituted phenyl.

n. Cy² Groups

In one aspect, Cy², when present, is selected from C3-C8 cycloalkyl andaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a further aspect, Cy², when present, is selected fromC3-C8 cycloalkyl and aryl and is substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy², whenpresent, is selected from C3-C8 cycloalkyl and aryl and is substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,Cy², when present, is selected from C3-C8 cycloalkyl and aryl and issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,Cy², when present, is selected from C3-C8 cycloalkyl and aryl and ismonosubstituted with a non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy², when present, is selected from C3-C8 cycloalkyl and aryl and isunsubstituted.

In a further aspect, Cy², when present, is C3-C8 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy², when present, is C3-C8 cycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy², when present,is C3-C8 cycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy², when present, is C3-C8cycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy², when present, is C3-C8 cycloalkyl monosubstitutedwith a non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy², when present,is unsubstituted C3-C8 cycloalkyl.

In a further aspect, Cy², when present, is C3-C7 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy², when present, is C3-C6 cycloalkyl substituted with 0-4 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy², when present,is C3-C5 cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy², when present, is C3-C4cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy², when present, is C4-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy², when present, is C5-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy², when present, is C6-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy², when present, is C7-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino.

In a further aspect, Cy², when present, is cyclohexyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy², when present, is cyclohexyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy², when present,is cyclohexyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy², when present, iscyclohexyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy², when present, is cyclohexyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy², when present,is unsubstituted cyclohexyl.

In a further aspect, Cy², when present, is aryl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy², when present, is aryl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy², when present, is arylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy², when present, is aryl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy², whenpresent, is aryl monosubstituted with a non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet afurther aspect, Cy², when present, is unsubstituted aryl.

In a further aspect, Cy², when present, is phenyl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy², when present, is phenyl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy², when present, is phenylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy², when present, is phenyl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy², whenpresent, is phenyl monosubstituted with a non-hydrogen group selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yeta further aspect, Cy², when present, is unsubstituted phenyl.

o. Cy³ Groups

In one aspect, Cy³, when present, is selected from C3-C8 cycloalkyl andaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a further aspect, Cy³, when present, is selected fromC3-C8 cycloalkyl and aryl and is substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy³, whenpresent, is selected from C3-C8 cycloalkyl and aryl and is substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,Cy³, when present, is selected from C3-C8 cycloalkyl and aryl and issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,Cy³, when present, is selected from C3-C8 cycloalkyl and aryl and ismonosubstituted with a non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy³, when present, is selected from C3-C8 cycloalkyl and aryl and isunsubstituted.

In a further aspect, Cy³, when present, is C3-C8 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy³, when present, is C3-C8 cycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy³, when present,is C3-C8 cycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy³, when present, is C3-C8cycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy³, when present, is C3-C8 cycloalkyl monosubstitutedwith a non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy³, when present,is unsubstituted C3-C8 cycloalkyl.

In a further aspect, Cy³, when present, is C3-C7 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy³, when present, is C3-C6 cycloalkyl substituted with 0-4 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy³, when present,is C3-C5 cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy³, when present, is C3-C4cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy³, when present, is C4-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy³, when present, is C5-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy³, when present, is C6-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy³, when present, is C7-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino.

In a further aspect, Cy³, when present, is cyclohexyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy³, when present, is cyclohexyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy³, when present,is cyclohexyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy³, when present, iscyclohexyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy³, when present, is cyclohexyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy³, when present,is unsubstituted cyclohexyl.

In a further aspect, Cy³, when present, is aryl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy³, when present, is aryl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy³, when present, is arylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy³, when present, is aryl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy³, whenpresent, is aryl monosubstituted with a non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet afurther aspect, Cy³, when present, is unsubstituted aryl.

In a further aspect, Cy³, when present, is phenyl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy³, when present, is phenyl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy³, when present, is phenylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy³, when present, is phenyl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy³, whenpresent, is phenyl monosubstituted with a non-hydrogen group selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yeta further aspect, Cy³, when present, is unsubstituted phenyl.

p. Cy⁴ Groups

In one aspect, Cy⁴, when present, is selected from C3-C8 cycloalkyl,C2-C7 heterocycloalkyl, aryl, and heteroaryl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In afurther aspect, Cy⁴, when present, is selected from C3-C8 cycloalkyl,C2-C7 heterocycloalkyl, aryl, and heteroaryl and is substituted with 0-3non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl, C2-C7 heterocycloalkyl, aryl, and heteroaryl and issubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁴, when present, is selectedfrom C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, and heteroaryl andis substituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl, C2-C7 heterocycloalkyl, aryl, and heteroaryl and isunsubstituted.

In one aspect, Cy⁴, when present, is selected from C3-C8 cycloalkyl,C2-C7 heterocycloalkyl, aryl, and heteroaryl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, —CN,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, C1-C4)(C1-C4) dialkylamino, and Cy⁶.In a further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl, C2-C7 heterocycloalkyl, aryl, and heteroaryl and issubstituted with 0-3 non-hydrogen groups independently selected fromhalogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, C1-C4)(C1-C4)dialkylamino, and Cy⁶. In a still further aspect, Cy⁴, when present, isselected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,C1-C4)(C1-C4) dialkylamino, and Cy⁶. In yet a further aspect, Cy⁴, whenpresent, is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl,aryl, and heteroaryl and is substituted with 0-1 non-hydrogen groupselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,C1-C4)(C1-C4) dialkylamino, and Cy⁶. In an even further aspect, Cy⁴,when present, is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl,aryl, and heteroaryl and is monosubstituted with a —CN group. In a stillfurther aspect, Cy⁴, when present, is selected from C3-C8 cycloalkyl,C2-C7 heterocycloalkyl, aryl, and heteroaryl and is monosubstituted witha Cy⁶ group.

In a further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl and C2-C7 heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl and C2-C7 heterocycloalkyl and is substituted with 0-3non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl and C2-C7 heterocycloalkyl and is substituted with 0-2non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is selected from C3-C8cycloalkyl and C2-C7 heterocycloalkyl and is substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is selected from C3-C8 cycloalkyl and C2-C7heterocycloalkyl and is unsubstituted.

In a further aspect, Cy⁴, when present, is C3-C8 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is C3-C8 cycloalkyl substitutedwith 0-3 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is C3-C8 cycloalkyl substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is C3-C8 cycloalkyl issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is unsubstituted C3-C8cycloalkyl.

In a further aspect, Cy⁴, when present, is cyclohexyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is cyclohexyl substituted with0-3 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is cyclohexyl substituted with0-2 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is cyclohexyl is substitutedwith 0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is unsubstituted cyclohexyl.

In a further aspect, Cy⁴, when present, is C2-C7 heterocycloalkylsubstituted with 0-4 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy⁴, when present, is C2-C7heterocycloalkyl substituted with 0-3 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁴, when present,is C2-C7 heterocycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,Cy⁴, when present, is C2-C7 heterocycloalkyl is substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is unsubstituted C2-C7 heterocycloalkyl.

In a further aspect, Cy⁴, when present, is tetrahydro-2H-pyranylsubstituted with 0-4 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy⁴, when present, istetrahydro-2H-pyranyl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,Cy⁴, when present, is tetrahydro-2H-pyranyl substituted with 0-2non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is tetrahydro-2H-pyranyl issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is unsubstitutedtetrahydro-2H-pyranyl.

In a further aspect, Cy⁴, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁴, whenpresent, is selected from aryl and heteroaryl and is substituted with0-3 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is selected from aryl andheteroaryl and is substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In an even further aspect, Cy⁴, whenpresent, is selected from aryl and heteroaryl and is substituted with0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is selected from aryl and heteroaryl and isunsubstituted.

In a further aspect, Cy⁴, when present, is aryl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is aryl substituted with 0-3non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is aryl substituted with 0-2non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is aryl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is unsubstituted aryl.

In a further aspect, Cy⁴, when present, is phenyl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is phenyl substituted with 0-3non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is phenyl substituted with 0-2non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is phenyl substituted with0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is unsubstituted phenyl.

In a further aspect, Cy⁴, when present, is heteroaryl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is heteroaryl substituted with0-3 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is heteroaryl substituted with0-2 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is heteroaryl substitutedwith 0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is unsubstituted heteroaryl.

In a further aspect, Cy⁴, when present, is pyridinyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is pyridinyl substituted with0-3 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is pyridinyl substituted with0-2 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is pyridinyl substituted with0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is unsubstituted pyridinyl.

In a further aspect, Cy⁴, when present, is pyrimidinyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is pyrimidinyl substituted with0-3 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is pyrimidinyl substituted with0-2 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is pyrimidinyl substitutedwith 0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is unsubstituted pyrimidinyl.

In a further aspect, Cy⁴, when present, is thiazolyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In astill further aspect, Cy⁴, when present, is thiazolyl substituted with0-3 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inyet a further aspect, Cy⁴, when present, is thiazolyl substituted with0-2 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkoxyhaloalkyl, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. Inan even further aspect, Cy⁴, when present, is thiazolyl substituted with0-1 non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl,C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still furtheraspect, Cy⁴, when present, is unsubstituted thiazolyl.

q. Cy⁵ Groups

In one aspect, Cy⁵, when present, is selected from C3-C8 cycloalkyl andaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a further aspect, Cy⁵, when present, is selected fromC3-C8 cycloalkyl and aryl and is substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁵, whenpresent, is selected from C3-C8 cycloalkyl and aryl and is substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,Cy⁵, when present, is selected from C3-C8 cycloalkyl and aryl and issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,Cy⁵, when present, is selected from C3-C8 cycloalkyl and aryl and ismonosubstituted with a non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁵, when present, is selected from C3-C8 cycloalkyl and aryl and isunsubstituted.

In a further aspect, Cy⁵, when present, is C3-C8 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁵, when present, is C3-C8 cycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁵, when present,is C3-C8 cycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁵, when present, is C3-C8cycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy⁵, when present, is C3-C8 cycloalkyl monosubstitutedwith a non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁵, when present,is unsubstituted C3-C8 cycloalkyl.

In a further aspect, Cy⁵, when present, is C3-C7 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁵, when present, is C3-C6 cycloalkyl substituted with 0-4 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁵, when present,is C3-C5 cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁵, when present, is C3-C4cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy⁵, when present, is C4-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁵, when present, is C5-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁵, when present, is C6-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy⁵, when present, is C7-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino.

In a further aspect, Cy⁵, when present, is cyclohexyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁵, when present, is cyclohexyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁵, when present,is cyclohexyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁵, when present, iscyclohexyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy⁵, when present, is cyclohexyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁵, when present,is unsubstituted cyclohexyl.

In a further aspect, Cy⁵, when present, is aryl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁵, when present, is aryl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁵, when present, is arylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy⁵, when present, is aryl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁵, whenpresent, is aryl monosubstituted with a non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet afurther aspect, Cy⁵, when present, is unsubstituted aryl.

In a further aspect, Cy⁵, when present, is phenyl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁵, when present, is phenyl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁵, when present, is phenylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy⁵, when present, is phenyl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁵, whenpresent, is phenyl monosubstituted with a non-hydrogen group selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yeta further aspect, Cy⁵, when present, is unsubstituted phenyl.

r. Cy⁶ Groups

In one aspect, Cy⁶, when present, is selected from C3-C8 cycloalkyl andaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a further aspect, Cy⁶, when present, is selected fromC3-C8 cycloalkyl and aryl and is substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁶, whenpresent, is selected from C3-C8 cycloalkyl and aryl and is substitutedwith 0-2 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet a further aspect,Cy⁶, when present, is selected from C3-C8 cycloalkyl and aryl and issubstituted with 0-1 non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an even further aspect,Cy⁶, when present, is selected from C3-C8 cycloalkyl and aryl and ismonosubstituted with a non-hydrogen group selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁶, when present, is selected from C3-C8 cycloalkyl and aryl and isunsubstituted.

In a further aspect, Cy⁶, when present, is C3-C8 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁶, when present, is C3-C8 cycloalkyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁶, when present,is C3-C8 cycloalkyl substituted with 0-2 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁶, when present, is C3-C8cycloalkyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy⁶, when present, is C3-C8 cycloalkyl monosubstitutedwith a non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁶, when present,is unsubstituted C3-C8 cycloalkyl.

In a further aspect, Cy⁶, when present, is C3-C7 cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁶, when present, is C3-C6 cycloalkyl substituted with 0-4 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁶, when present,is C3-C5 cycloalkyl substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁶, when present, is C3-C4cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy⁶, when present, is C4-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁶, when present, is C5-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁶, when present, is C6-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In a still further aspect, Cy⁶, when present, is C7-C8cycloalkyl substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino.

In a further aspect, Cy⁶, when present, is cyclohexyl substituted with0-4 non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁶, when present, is cyclohexyl substituted with 0-3 non-hydrogengroups independently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁶, when present,is cyclohexyl substituted with 0-2 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In an even further aspect, Cy⁶, when present, iscyclohexyl substituted with 0-1 non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a stillfurther aspect, Cy⁶, when present, is cyclohexyl monosubstituted with anon-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In yet a further aspect, Cy⁶, when present,is unsubstituted cyclohexyl.

In a further aspect, Cy⁶, when present, is aryl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁶, when present, is aryl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁶, when present, is arylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy⁶, when present, is aryl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁶, whenpresent, is aryl monosubstituted with a non-hydrogen group selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yet afurther aspect, Cy⁶, when present, is unsubstituted aryl.

In a further aspect, Cy⁶, when present, is phenyl substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino. In a still further aspect,Cy⁶, when present, is phenyl substituted with 0-3 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino. In yet a further aspect, Cy⁶, when present, is phenylsubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In an evenfurther aspect, Cy⁶, when present, is phenyl substituted with 0-1non-hydrogen group selected from halogen, —NH₂, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino. In a still further aspect, Cy⁶, whenpresent, is phenyl monosubstituted with a non-hydrogen group selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino. In yeta further aspect, Cy⁶, when present, is unsubstituted phenyl.

s. AR¹ Groups

In one aspect, Ar¹, when present, is selected from aryl and heteroaryland is substituted with 1-4 non-hydrogen groups independently selectedfrom halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In a furtheraspect, Ar¹, when present, is selected from aryl and heteroaryl and issubstituted with 1-3 non-hydrogen groups independently selected fromhalogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy,—(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In a still furtheraspect, Ar¹, when present, is selected from aryl and heteroaryl and issubstituted with 1-2 non-hydrogen groups independently selected fromhalogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy,—(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In yet a furtheraspect, Ar¹, when present, is selected from aryl and heteroaryl and ismonosubstituted with a non-hydrogen group selected from —(CH₂)_(m)NH₂and —(CH₂)_(m)(C1-C4 alkylamino).

In one aspect, Ar¹, when present, is selected from aryl and heteroaryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵. In a furtheraspect, Ar¹, when present, is selected from aryl and heteroaryl and issubstituted with 0-3 non-hydrogen groups independently selected fromhalogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵. In a still furtheraspect, Ar¹, when present, is selected from aryl and heteroaryl and issubstituted with 0-2 non-hydrogen groups independently selected fromhalogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵. In yet a furtheraspect, Ar¹, when present, is selected from aryl and heteroaryl and issubstituted with 0-1 non-hydrogen groups independently selected fromhalogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵.

In a further aspect, Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵, provided that Ar¹,when present, is substituted with at least one non-hydrogen groupselected from —CN, —(CH₂)_(m)NH₂, and —(CH₂)_(m)(C1-C4 alkylamino).

In a further aspect, Ar¹, when present, is aryl substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In a still further aspect, Ar¹, whenpresent, is aryl substituted with 1-3 non-hydrogen groups independentlyselected from halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In yet a furtheraspect, Ar¹, when present, is aryl substituted with 1-2 non-hydrogengroups independently selected from halogen, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In an even further aspect, Ar¹, whenpresent, is aryl monosubstituted with a non-hydrogen group selected from—(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino).

In a further aspect, Ar¹, when present, is aryl monosubstituted with anon-hydrogen group selected from —NH₂, —CH₂NH₂, —CH₂NHCH₃, and —NHCH₃.In a still further aspect, Ar¹, when present, is aryl monosubstitutedwith a non-hydrogen group selected from —NH₂ and —NHCH₃. In yet afurther aspect, Ar¹, when present, is aryl monosubstituted with a —NH₂group. In an even further aspect, Ar¹, when present, is arylmonosubstituted with a —CH₂NH₂ group. In a still further aspect, Ar¹,when present, is aryl monosubstituted with a —CH₂NHCH₃ group. In yet afurther aspect, Ar¹, when present, is aryl monosubstituted with a —NHCH₃group.

In a further aspect, Ar¹, when present, is phenyl substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In a still further aspect, Ar¹, whenpresent, is phenyl substituted with 1-3 non-hydrogen groupsindependently selected from halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),and —(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In yet a furtheraspect, Ar¹, when present, is phenyl substituted with 1-2 non-hydrogengroups independently selected from halogen, C1-C4 alkyl, C1-C4haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In an even further aspect, Ar¹, whenpresent, is phenyl monosubstituted with a non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino).

In a further aspect, Ar¹, when present, is phenyl monosubstituted with anon-hydrogen group selected from —NH₂, —CH₂NH₂, —CH₂NHCH₃, and —NHCH₃.In a still further aspect, Ar¹, when present, is phenyl monosubstitutedwith a non-hydrogen group selected from —NH₂ and —NHCH₃. In yet afurther aspect, Ar¹, when present, is phenyl monosubstituted with a —NH₂group. In an even further aspect, Ar¹, when present, is phenylmonosubstituted with a —CH₂NH₂ group. In a still further aspect, Ar¹,when present, is phenyl monosubstituted with a —CH₂NHCH₃ group. In yet afurther aspect, Ar¹, when present, is phenyl monosubstituted with a—NHCH₃ group.

In a further aspect, Ar¹, when present, is heteroaryl substituted with1-4 non-hydrogen groups independently selected from halogen, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In a still further aspect, Ar¹, whenpresent, is heteroaryl substituted with 1-3 non-hydrogen groupsindependently selected from halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),and —(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In yet a furtheraspect, Ar¹, when present, is heteroaryl substituted with 1-2non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In an even further aspect, Ar¹, whenpresent, is heteroaryl monosubstituted with a non-hydrogen groupselected from —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino).

In a further aspect, Ar¹, when present, is heteroaryl monosubstitutedwith a non-hydrogen group selected from —NH₂, —CH₂NH₂, —CH₂NHCH₃, and—NHCH₃. In a still further aspect, Ar¹, when present, is arylmonosubstituted with a non-hydrogen group selected from —NH₂ and —NHCH₃.In yet a further aspect, Ar¹, when present, is heteroarylmonosubstituted with a —NH₂ group. In an even further aspect, Ar¹, whenpresent, is heteroaryl monosubstituted with a —CH₂NH₂ group. In a stillfurther aspect, Ar¹, when present, is heteroaryl monosubstituted with a—CH₂NHCH₃ group. In yet a further aspect, Ar¹, when present, isheteroaryl monosubstituted with a —NHCH₃ group.

In a further aspect, Ar¹, when present, is pyridinyl substituted with1-4 non-hydrogen groups independently selected from halogen, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In a still further aspect, Ar¹, whenpresent, is pyridinyl substituted with 1-3 non-hydrogen groupsindependently selected from halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),and —(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], provided that Ar¹, whenpresent, is substituted with at least one non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino). In yet a furtheraspect, Ar¹, when present, is pyridinyl substituted with 1-2non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino). In an even further aspect, Ar¹, whenpresent, is pyridinyl monosubstituted with a non-hydrogen group selectedfrom —(CH₂)_(m)NH₂ and —(CH₂)_(m)(C1-C4 alkylamino).

In a further aspect, Ar¹, when present, is pyridinyl monosubstitutedwith a non-hydrogen group selected from —NH₂, —CH₂NH₂, —CH₂NHCH₃, and—NHCH₃. In a still further aspect, Ar¹, when present, is pyridinylmonosubstituted with a non-hydrogen group selected from —NH₂ and —NHCH₃.In yet a further aspect, Ar¹, when present, is pyridinyl monosubstitutedwith a —NH₂ group. In an even further aspect, Ar¹, when present, ispyridinyl monosubstituted with a —CH₂NH₂ group. In a still furtheraspect, Ar¹, when present, is pyridinyl monosubstituted with a —CH₂NHCH₃group. In yet a further aspect, Ar¹, when present, is pyridinylmonosubstituted with a —NHCH₃ group.

2. Example Compounds

In one aspect, a compound can be present as one or more of the followingstructures:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as the following structure:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as the following structure:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as the following structure:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as one or more of the followingstructures:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as one or more of the followingstructures:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as one or more of the followingstructures:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be present as one or more of the followingstructures:

or a pharmaceutically acceptable salt thereof.

3. Prophetic Compound Examples

The following compound examples are prophetic, and can be prepared usingthe synthesis methods described herein above and other general methodsas needed as would be known to one skilled in the art. It is anticipatedthat the prophetic compounds would be active as inhibitors of TGF-β, andsuch activity can be determined using the assay methods describedherein.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

In one aspect, a compound can be selected from:

or a pharmaceutically acceptable salt thereof.

C. Pharmaceutical Compositions

In one aspect, the invention relates to pharmaceutical compositionscomprising a therapeutically effective amount at least one disclosedcompound and a pharmaceutically acceptable carrier. In a further aspect,a pharmaceutical composition can be provided comprising atherapeutically effective amount of at least one disclosed compound. Ina still further aspect, a pharmaceutical composition can be providedcomprising a prophylactically effective amount of at least one disclosedcompound. In yet a further aspect, the invention relates topharmaceutical compositions comprising a pharmaceutically acceptablecarrier and a compound, wherein the compound is present in an effectiveamount.

Pharmaceutically acceptable salts of the compounds are conventionalacid-addition salts or base-addition salts that retain the biologicaleffectiveness and properties of the compounds and are formed fromsuitable non-toxic organic or inorganic acids or organic or inorganicbases. Exemplary acid-addition salts include those derived frominorganic acids such as hydrochloric acid, hydrobromic acid, hydroiodicacid, sulfuric acid, sulfamic acid, phosphoric acid and nitric acid, andthose derived from organic acids such as p-toluenesulfonic acid,salicylic acid, methanesulfonic acid, oxalic acid, succinic acid, citricacid, malic acid, lactic acid, fumaric acid, and the like. Examplebase-addition salts include those derived from ammonium, potassium,sodium and, quaternary ammonium hydroxides, such as for example,tetramethylammonium hydroxide. Chemical modification of a pharmaceuticalcompound into a salt is a known technique to obtain improved physicaland chemical stability, hygroscopicity, flowability and solubility ofcompounds. See, e.g., H. Ansel et. al., Pharmaceutical Dosage Forms andDrug Delivery Systems (6th Ed. 1995) at pp. 196 and 1456-1457.

The pharmaceutical compositions comprise the compounds in apharmaceutically acceptable carrier. A pharmaceutically acceptablecarrier refers to sterile aqueous or nonaqueous solutions, dispersions,suspensions or emulsions, as well as sterile powders for reconstitutioninto sterile injectable solutions or dispersions just prior to use.Examples of suitable aqueous and nonaqueous carriers, diluents, solventsor vehicles include water, ethanol, polyols (such as glycerol, propyleneglycol, polyethylene glycol and the like), carboxymethylcellulose andsuitable mixtures thereof, vegetable oils (such as olive oil) andinjectable organic esters such as ethyl oleate. The compounds can beformulated with pharmaceutically acceptable carriers or diluents as wellas any other known adjuvants and excipients in accordance withconventional techniques such as those disclosed in Remington: TheScience and Practice of Pharmacy, 19th Edition, Gennaro, Ed., MackPublishing Co., Easton, Pa., 1995.

In a further aspect, the pharmaceutical composition is administered to amammal. In a still further aspect, the mammal is a human. In an evenfurther aspect, the human is a patient.

In a further aspect, the pharmaceutical composition is administeredfollowing identification of the mammal in need of treatment of cancer.In a still further aspect, the mammal has been diagnosed with a need fortreatment of cancer prior to the administering step.

In a further aspect, the pharmaceutical composition is administeredfollowing identification of the mammal in need of treatment of afibrotic disorder. In a still further aspect, the mammal has beendiagnosed with a need for treatment of a fibrotic disorder prior to theadministering step. In yet a further aspect, the fibrotic disorder isselected from PAH, NASH, ALS, and MD.

In a further aspect, the pharmaceutical composition is administeredfollowing identification of the mammal in need of immunotherapy. In astill further aspect, the mammal has been diagnosed with a need forimmunotherapy prior to the administering step.

In various aspects, the disclosed pharmaceutical compositions comprisethe disclosed compounds (including pharmaceutically acceptable salt(s)thereof) as an active ingredient, a pharmaceutically acceptable carrier,and, optionally, other therapeutic ingredients or adjuvants. The instantcompositions include those suitable for oral, rectal, topical, andparenteral (including subcutaneous, intramuscular, and intravenous)administration, although the most suitable route in any given case willdepend on the particular host, and nature and severity of the conditionsfor which the active ingredient is being administered. Thepharmaceutical compositions can be conveniently presented in unit dosageform and prepared by any of the methods well known in the art ofpharmacy.

The choice of carrier will be determined in part by the particularmethod used to administer the composition. Accordingly, there is a widevariety of suitable formulations of the pharmaceutical composition ofthe present invention. The following formulations for oral, aerosol,parenteral, subcutaneous, intravenous, intraarterial, intramuscular,intraperitoneal, intrathecal, rectal, and vaginal administration aremerely exemplary and are in no way limiting.

Formulations suitable for oral administration can consist of (a) liquidsolutions, such as an effective amount of the compound dissolved indiluents, such as water, saline, or orange juice; (b) capsules, sachets,tablets, lozenges, and troches, each containing a predetermined amountof the active ingredient, as solids or granule; (c) powders; (d)suspensions in an appropriate liquid; and (e) suitable emulsions. Liquidformulations may include diluents, such as water, cyclodextrin, dimethylsulfoxide and alcohols, for example, ethanol, benzyl alcohol, propyleneglycol, glycerin, and the polyethylene alcohols including polyethyleneglycol, either with or without the addition of a pharmaceuticallyacceptable surfactant, suspending agent, or emulsifying agent. Capsuleforms can be of the ordinary hard- or soft-shelled gelatin typecontaining, for example, surfactants, lubricants, and inert fillers,such as lactose, sucrose, calcium phosphate, and corn starch. Tabletforms can include one or more of the following: lactose, sucrose,mannitol, corn starch, potato starch, alginic acid, microcrystallinecellulose, acacia, gelatin, guar gum, colloidal silicon dioxide,croscarmellose sodium, talc, magnesium stearate, calcium stearate, zincstearate, stearic acid, and other excipients, colorants, diluents,buffering agents, disintegrating agents, moistening agents,preservatives, flavoring agents, and pharmacologically compatiblecarriers. Lozenge forms can comprise the active ingredient in a flavor,usually sucrose and acacia or tragacanth, as well as pastillescomprising the active ingredient in an inert base, such as gelatin andglycerin, or sucrose and acadia, emulsions, and gels containing, theaddition to the active ingredient in an inert base, such as gelatin andglycerin, or sucrose and acadia, emulsions, and gels containing, inaddition to the active ingredient, such carriers as are known in theart.

The compounds of the present disclosure alone or in combination withother suitable components, can be made into aerosol formulations to beadministered via inhalation. These aerosol formulations can be placedinto pressurized acceptable propellants, such asdichlorodifluoromethane, propane, and nitrogen. They also may beformulated as pharmaceuticals for non-pressured preparations, such as ina nebulizer or an atomizer.

Formulations suitable for parenteral administration include aqueous andnon-aqueous, isotonic sterile injection solutions, which can containanti-oxidants, buffers, bacteriostats, and solutes that render theformulation isotonic with the blood of the intended recipient, andaqueous and non-aqueous sterile suspensions that can include suspendingagents, solubilizers, thickening agents, stabilizers, and preservatives.The compound can be administered in a physiologically acceptable diluentin a pharmaceutical carrier, such as a sterile liquid or mixture ofliquids, including water, saline, aqueous dextrose and related sugarsolutions, an alcohol, such as ethanol, isopropanol, or hexadecylalcohol, glycols, such as propylene glycol or polyethylene glycol suchas poly(ethyleneglycol) 400, glycerol ketals, such as 2,2-dimethyl-1,3-dioxolane-4-methanol, ethers, an oil, a fatty acid, a fatty acid esteror glyceride, or an acetylated fatty acid glyceride with or without theaddition of a pharmaceutically acceptable surfactant, such as a soap ora detergent, suspending agent, such as pectin, carbomers,methylcellulose, hydroxypropylmethylcellulose, orcarboxymethylcelluslose, or emulsifying agents and other pharmaceuticaladjuvants.

Oils which can be used in parenteral formulations include petroleum,animal, vegetable, or synthetic oils. Specific examples of oils includepeanut, soybean, sesame, cottonseed, corn, olive, petrolatum, andmineral. Suitable fatty acids for use in parenteral formulations includeoleic acid, stearic acid, and isostearic acid. Ethyl oleate andisopropyl myristate are examples of suitable fatty acid esters. Suitablesoaps for use in parenteral formulations include fatty alkali metal,ammonium, and triethanolamine salts, and suitable detergents include (a)cationic detergents such as, for example. dimethyldialkylammoniumhalides, and alkylpyridinium halides, (b) anionic detergents such as,for example, alkyl, aryl, and olefin sulfonates, alkyl olefin, ether,and monoglyceride sulfates, and sulfosuccinates, (c) nonionic detergentssuch as, for example, fatty amine oxides, fatty acid alkanolamides, andpolyoxyethylene polypropylene copolymers, (d) amphoteric detergents suchas, for example, alkyl β-aminopropionates, and 2-alkylimidazolinequaternary ammonium salts, and (e) mixtures thereof.

The parenteral formulations typically contain from about 0.5% to about25% by weight of the active ingredient in solution. Suitablepreservatives and buffers can be used in such formulations. In order tominimize or eliminate irritation at the site of injection, suchcompositions may contain one or more nonionic surfactants having ahydrophile-lipophile balance (HLB) of from about 12 to about 17. Thequantity of surfactant in such formulations ranges from about 5% toabout 15% by weight. Suitable surfactants include polyethylene sorbitanfatty acid esters, such as sorbitan monooleate and the high molecularweight adducts of ethylene oxide with a hydrophobic base, formed by thecondensation of propylene oxide with propylene glycol.

Pharmaceutically acceptable excipients are also well-known to those whoare skilled in the art. The choice of excipient will be determined inpart by the particular compound, as well as by the particular methodused to administer the composition. Accordingly, there is a wide varietyof suitable formulations of the pharmaceutical composition of thepresent disclosure. The following methods and excipients are merelyexemplary and are in no way limiting. The pharmaceutically acceptableexcipients preferably do not interfere with the action of the activeingredients and do not cause adverse side-effects. Suitable carriers andexcipients include solvents such as water, alcohol, and propyleneglycol, solid absorbants and diluents, surface active agents, suspendingagent, tableting binders, lubricants, flavors, and coloring agents.

The formulations can be presented in unit-dose or multi-dose sealedcontainers, such as ampules and vials, and can be stored in afreeze-dried (lyophilized) condition requiring only the addition of thesterile liquid excipient, for example, water, for injections,immediately prior to use. Extemporaneous injection solutions andsuspensions can be prepared from sterile powders, granules, and tablets.The requirements for effective pharmaceutical carriers for injectablecompositions are well known to those of ordinary skill in the art. SeePharmaceutics and Pharmacy Practice, J.B. Lippincott Co., Philadelphia,Pa., Banker and Chalmers, Eds., 238-250 (1982) and ASHP Handbook onInjectable Drugs, Toissel, 4^(th) ed., 622-630 (1986).

Formulations suitable for topical administration include lozengescomprising the active ingredient in a flavor, usually sucrose and acaciaor tragacanth; pastilles comprising the active ingredient in an inertbase, such as gelatin and glycerin, or sucrose and acacia; andmouthwashes comprising the active ingredient in a suitable liquidcarrier; as well as creams, emulsions, and gels containing, in additionto the active ingredient, such carriers as are known in the art.

Additionally, formulations suitable for rectal administration may bepresented as suppositories by mixing with a variety of bases such asemulsifying bases or water-soluble bases. Formulations suitable forvaginal administration may be presented as pessaries, tampons, creams,gels, pastes, foams, or spray formulas containing, in addition to theactive ingredient, such carriers as are known in the art to beappropriate.

One skilled in the art will appreciate that suitable methods ofexogenously administering a compound of the present disclosure to ananimal are available, and, although more than one route can be used toadminister a particular compound, a particular route can provide a moreimmediate and more effective reaction than another route.

As regards these applications, the present method includes theadministration to an animal, particularly a mammal, and moreparticularly a human, of a therapeutically effective amount of thecompound effective in the inhibition of TGF-β. The method also includesthe administration of a therapeutically effect amount of the compoundfor the treatment of patient having a predisposition for being afflictedwith a disorder associated with TGF-β activity. The dose administered toan animal, particularly a human, in the context of the present inventionshould be sufficient to affect a therapeutic response in the animal overa reasonable time frame. One skilled in the art will recognize thatdosage will depend upon a variety of factors including the condition ofthe animal, the body weight of the animal, as well as the severity andstage of the virus.

The total amount of the compound of the present disclosure administeredin a typical treatment is preferably between about 10 mg/kg and about1000 mg/kg of body weight for mice, and between about 100 mg/kg andabout 500 mg/kg of body weight, and more preferably between 200 mg/kgand about 400 mg/kg of body weight for humans per daily dose. This totalamount is typically, but not necessarily, administered as a series ofsmaller doses over a period of about one time per day to about threetimes per day for about 24 months, and preferably over a period of twiceper day for about 12 months.

The size of the dose also will be determined by the route, timing andfrequency of administration as well as the existence, nature and extentof any adverse side effects that might accompany the administration ofthe compound and the desired physiological effect. It will beappreciated by one of skill in the art that various conditions ordisease states, in particular chronic conditions or disease states, mayrequire prolonged treatment involving multiple administrations.

In a further aspect, the composition further comprises at least oneagent known to treat cancer. In a still further aspect, the cancer isselected from multiple myeloma and a hematologic malignancy.

In a further aspect, the composition further comprises at least oneagent known to have a side effect of increasing the risk of cancer.

In a further aspect, the composition further comprises at least oneagent known to treat a fibrotic disorder. In a still further aspect, thefibrotic disorder is found in the liver, the lung, the cardiac muscle,the kidney, the skin, the pulmonary artery, or the eye. In yet a furtheraspect, the fibrotic disorder is found in the liver. In an even furtheraspect, fibrotic disorder is glaucoma, amyotropic lateral sclerosis,pulmonary arterial hypertension (PAH), non-alcoholic steatohepatitis(NASH), epidermolysis bullosa, or muscular dystrophy.

In a further aspect, the composition further comprises at least oneagent known to have a side effect of increasing the risk of a fibroticdisorder.

In a further aspect, the composition further comprises at least oneagent known to treat an immune dysfunction.

In a further aspect, the composition further comprises at least oneagent known to have a side effect of increasing the risk of an immunedysfunction.

It is understood that the disclosed compositions can be prepared fromthe disclosed compounds. It is also understood that the disclosedcompositions can be employed in the disclosed methods of using.

D. Methods of Making the Compounds

In various aspects, the inventions relates to methods of makingcompounds useful to treat disorders associated with TGF-β activity suchas, for example, cancers, in particular, multiple myeloma andhematologic malignancies, immune dysfunction, and fibrotic disorders, inparticular, liver fibrosis, diabetic nephropathy, muscular dystrophy,amyotrophic lateral sclerosis, PAH, NASH, epidermolysis bullosa, andglaucoma. Thus, in one aspect, disclosed are methods of making adisclosed compound.

Compounds according to the present disclosure can, for example, beprepared by the several methods outlined below. A practitioner skilledin the art will understand the appropriate use of protecting groups[see: Greene and Wuts, Protective Groups in Organic Synthesis] and thepreparation of known compounds found in the literature using thestandard methods of organic synthesis. There may come from time to timethe need to rearrange the order of the recommended synthetic steps,however this will be apparent to the judgment of a chemist skilled inthe art of organic synthesis. The following examples are provided sothat the invention might be more fully understood, are illustrativeonly, and should not be construed as limiting.

In one aspect, the disclosed compounds comprise the products of thesynthetic methods described herein. In a further aspect, the disclosedcompounds comprise a compound produced by a synthetic method describedherein. In a still further aspect, the invention comprises apharmaceutical composition comprising a therapeutically effective amountof the product of the disclosed methods and a pharmaceuticallyacceptable carrier. In a still further aspect, the invention comprises amethod for manufacturing a medicament comprising combining at least onecompound of any of disclosed compounds or at least one product of thedisclosed methods with a pharmaceutically acceptable carrier or diluent.

1. Route I

In one aspect, oxadiazole analogs can be prepared as shown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 1.4, and similar compounds, can beprepared according to reaction Scheme 1B above. Thus, compounds of type1.7 can be prepared by a coupling reaction of an appropriate carboxylicacid, e.g., 1.5 as shown above, and an appropriate hydrazide, e.g., 1.6as shown above. Appropriate carboxylic acids and appropriate hydrazidesare commercially available or prepared by methods known to one skilledin the art. The coupling reaction is carried out in the presence of anappropriate coupling agent, e.g.,1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium3-oxid hexafluorophosphate (HATU), and an appropriate base, e.g.,diisopropylethylamine (DIPEA), in an appropriate solvent, e.g.,acetonitrile, for an appropriate period of time, e.g., 18-24 hours.Compounds of type 1.8 can be prepared by cyclization of an appropriatehydrazide, e.g., 1.7 as shown above. The cyclization is carried out inthe presence of an appropriate sulfonyl halide, e.g., 4-toluenesulfonylchloride, and an appropriate activating agent, e.g.,4-dimethylaminopyridine, in an appropriate solvent, e.g., acetonitrile,for an appropriate period of time, e.g., 6 hours. As can be appreciatedby one skilled in the art, the above reaction provides an example of ageneralized approach wherein compounds similar in structure to thespecific reactants above (compounds similar to compounds of type 1.1,1.2, and 1.3), can be substituted in the reaction to provide substitutedoxadiazole analogs similar to Formula 1.4.

2. Route II

In one aspect, thiadiazole analogs can be prepared as shown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 2.1, and similar compounds, can beprepared according to reaction Scheme 2B above. Thus, compounds of type1.7 can be prepared by a coupling reaction of an appropriate carboxylicacid, e.g., 1.5 as shown above, and an appropriate hydrazide, e.g., 1.6as shown above. Appropriate carboxylic acids and appropriate hydrazidesare commercially available or prepared by methods known to one skilledin the art. The coupling reaction is carried out in the presence of anappropriate coupling agent, e.g.,1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium3-oxid hexafluorophosphate (HATU), and an appropriate base, e.g.,diisopropylethylamine (DIPEA), in an appropriate solvent, e.g.,acetonitrile, for an appropriate period of time, e.g., 18-24 hours.Compounds of type 2.2 can be prepared by thionation and subsequentcyclization of an appropriate hydrazide, e.g., 1.7 as shown above. Thethionation/cyclization is carried out in the presence of an appropriatethionating agent, e.g., Lawesson's reagent, in an appropriate solvent,e.g., tetrahydrofuran (THF), at an appropriate temperature, e.g.,refluxing conditions. As can be appreciated by one skilled in the art,the above reaction provides an example of a generalized approach whereincompounds similar in structure to the specific reactants above(compounds similar to compounds of type 1.1, 1.2, and 1.3), can besubstituted in the reaction to provide substituted thiadiazole analogssimilar to Formula 2.1.

3. Route III

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 3.4, and similar compounds, can beprepared according to reaction Scheme 3B above. Thus, compounds of type3.5 can be prepared by a deprotection of an appropriate amine, e.g., 1.8as shown above. Appropriate amines are commercially available orprepared by methods known to one skilled in the art. The deprotection iscarried out in the presence of an appropriate acid, e.g.,trifluoroacetic acid, in an appropriate solvent, e.g., dichloromethane(DCM). Compounds of type 3.7 can be prepared by a coupling reaction ofan appropriate amine, e.g., 3.5 as shown above, and an appropriatecarboxylate, e.g., 3.6 as shown above. Appropriate carboxylates arecommercially available or prepared by methods known to one skilled inthe art. The coupling reaction is carried out in the presence of anappropriate base, e.g., diisopropylethylamine (DIEA), in an appropriatesolvent, e.g., dichloromethane. As can be appreciated by one skilled inthe art, the above reaction provides an example of a generalizedapproach wherein compounds similar in structure to the specificreactants above (compounds similar to compounds of type 3.1, 3.2, and3.3), can be substituted in the reaction to provide substitutedoxadiazole and thiadiazole analogs similar to Formula 3.4.

4. Route IV

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 4.2, and similar compounds, can beprepared according to reaction Scheme 4B above. Thus, compounds of type4.3 can be prepared by deprotection of an appropriate amine, e.g., 3.7as shown above. The deprotection is carried out in the presence of anappropriate base, e.g., piperidine, in an appropriate solvent, e.g.,acetonitrile, for an appropriate period of time, e.g., 4-6 hours. As canbe appreciated by one skilled in the art, the above reaction provides anexample of a generalized approach wherein compounds similar in structureto the specific reactants above (compounds similar to compounds of type4.1), can be substituted in the reaction to provide substitutedoxadiazole and thiadiazole analogs similar to Formula 4.2.

5. Route V

In one aspect, oxadiazole analogs can be prepared as shown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 5.3, and similar compounds, can beprepared according to reaction Scheme 5B above. Thus, compounds of type5.7 can be prepared by a coupling reaction of an appropriate carboxylicacid, e.g., 5.4 as shown above, and an appropriate hydrazide, e.g., 5.5as shown above. Appropriate carboxylic acids and appropriate hydrazidesare commercially available or prepared by methods known to one skilledin the art. The coupling reaction is carried out in the presence of anappropriate coupling agent, e.g.,1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium3-oxid hexafluorophosphate (HATU), and an appropriate base, e.g.,diisopropylethylamine, in an appropriate solvent, e.g., acetonitrile,for an appropriate period of time, e.g., 16 hours. Compounds of type 5.7can be prepared by cyclization of an appropriate hydrazide, e.g., 5.6 asshown above. The cyclization is carried out in the presence of anappropriate sulfonyl halide, e.g., 4-toluenesulfonyl chloride, and anappropriate base, e.g., triethylamine, in an appropriate solvent, e.g.,acetonitrile, for an appropriate period of time, e.g., 30 minutes, at anappropriate temperature, e.g., 120° C. As can be appreciated by oneskilled in the art, the above reaction provides an example of ageneralized approach wherein compounds similar in structure to thespecific reactants above (compounds similar to compounds of type 1.1,5.1, and 5.2), can be substituted in the reaction to provide substitutedoxadiazole analogs similar to Formula 5.3.

6. Route VI

In one aspect, thiadiazole analogs can be prepared as shown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 6.1, and similar compounds, can beprepared according to reaction Scheme 6B above. Thus, compounds of type6.3 can be prepared by thionation and subsequent cyclization of anappropriate hydrazide, e.g., 6.2 as shown above. Thethionation/cyclization is carried out in the presence of an appropriatethionating agent, e.g., Lawesson's reagent, in an appropriate solvent,e.g., tetrahydrofuran (THF), at an appropriate temperature, e.g.,refluxing conditions, for an appropriate period of time, e.g., 3 hours.As can be appreciated by one skilled in the art, the above reactionprovides an example of a generalized approach wherein compounds similarin structure to the specific reactants above (compounds similar tocompounds of type 5.2), can be substituted in the reaction to providesubstituted thiadiazole analogs similar to Formula 6.3.

7. Route VII

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 7.2, and similar compounds, can beprepared according to reaction Scheme 7B above. Thus, compounds of type7.4 can be prepared by a deprotection of an appropriate amine, e.g., 7.3as shown above. Appropriate amines are commercially available orprepared by methods known to one skilled in the art. The deprotection iscarried out in the presence of an appropriate acid, e.g.,trifluoroacetic acid, in an appropriate solvent, e.g., dichloromethane(DCM). Compounds of type 7.5 can be prepared by a coupling reaction ofan appropriate amine, e.g., 7.4 as shown above, and an appropriatecarboxylate, e.g., 3.6 as shown above. Appropriate carboxylates arecommercially available or prepared by methods known to one skilled inthe art. The coupling reaction is carried out in the presence of anappropriate base, e.g., diisopropylethylamine (DIEA), in an appropriatesolvent, e.g., dichloromethane, for an appropriate period of time 16 h.As can be appreciated by one skilled in the art, the above reactionprovides an example of a generalized approach wherein compounds similarin structure to the specific reactants above (compounds similar tocompounds of type 3.3, 6.1, and 7.1), can be substituted in the reactionto provide substituted oxadiazole and thiadiazole analogs similar toFormula 7.2.

8. Route VIII

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein R^(a) is R³ with aprotected amine group. A more specific example is set forth below.

In one aspect, compounds of type 8.2, and similar compounds, can beprepared according to reaction Scheme 8B above. Thus, compounds of type8.3 can be prepared by deprotection of an appropriate amine, e.g., 7.5as shown above. The deprotection is carried out in the presence of anappropriate base, e.g., piperidine, in an appropriate solvent, e.g.,dimethylformamide, for an appropriate period of time, e.g., 2 hours. Ascan be appreciated by one skilled in the art, the above reactionprovides an example of a generalized approach wherein compounds similarin structure to the specific reactants above (compounds similar tocompounds of type 8.1), can be substituted in the reaction to providesubstituted oxadiazole and thiadiazole analogs similar to Formula 8.2.

9. Route IX

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein R^(b) is R³ with acyano substituent and R^(c) is R³ with a protected amine group. A morespecific example is set forth below.

In one aspect, compounds of type 9.3, and similar compounds, can beprepared according to reaction Scheme 9B above. Thus, compounds of type9.5 can be prepared by reduction of an appropriate cyanide, e.g., 9.4 asshown above. The reduction is carried out in the presence of anappropriate catalyst, e.g., nickel (II) chloride hexahydrate, anappropriate reducing agent, e.g., sodium borohydride, and an appropriateamine protecting agent, e.g., di-tert-butyl-dicarbonate, in anappropriate solvent, e.g., methanol and dichloromethane, for anappropriate period of time, e.g., 3 hours. Compounds of type 9.6 can beprepared by deprotection of an appropriate protected amine, e.g., 9.5 asshown above. The deprotection is carried out in the presence of anappropriate deprotecting agent, e.g., trimethylsilyl chloride, in anappropriate solvent, e.g., 2,2,2-trifluoroethanol, for an appropriateperiod of time, e.g., 16 hours. As can be appreciated by one skilled inthe art, the above reaction provides an example of a generalizedapproach wherein compounds similar in structure to the specificreactants above (compounds similar to compounds of type 9.1 and 9.2),can be substituted in the reaction to provide substituted oxadiazole andthiadiazole analogs similar to Formula 9.6.

10. Route X

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 10.2, and similar compounds, can beprepared according to reaction Scheme 10B above. Thus, compounds of type10.4 can be prepared by alkylation of an appropriate amine, e.g., 10.3as shown above. The alkylation is carried out in the presence of anappropriate alkyl halide, e.g., ethyl iodide, and an appropriate base,e.g., 60% sodium hydride, in an appropriate solvent, e.g.,N,N′-dimethylacetamide, for an appropriate period of time, e.g., 16hours. Deprotection of the amine can subsequently be achieved by methodsknown in the art. As can be appreciated by one skilled in the art, theabove reaction provides an example of a generalized approach whereincompounds similar in structure to the specific reactants above(compounds similar to compounds of type 10.1), can be substituted in thereaction to provide substituted oxadiazole and thiadiazole analogssimilar to Formula 10.2.

11. Route XI

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein X is a halogen and Ris aryl or a vinylic substituent, as defined elsewhere herein. A morespecific example is set forth below.

In one aspect, compounds of type 11.3, and similar compounds, can beprepared according to reaction Scheme 11B above. Thus, compounds of type11.6 can be prepared by a coupling reaction between an appropriate arylhalide, e.g., 11.4 as shown above, and an appropriate borane, e.g., 11.5as shown above. The coupling reaction is carried out in the presence ofan appropriate catalyst, e.g.,[1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II), and anappropriate base, e.g., potassium carbonate, in an appropriate solventsystem, e.g., 1,4-dioxane and water, at an appropriate temperature,e.g., 90° C., for an appropriate period of time, e.g., 4 hours. As canbe appreciated by one skilled in the art, the above reaction provides anexample of a generalized approach wherein compounds similar in structureto the specific reactants above (compounds similar to compounds of type11.1 and 11.2), can be substituted in the reaction to providesubstituted oxadiazole and thiadiazole analogs similar to Formula 11.3.

12. Route XII

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein R^(a) is R³ with aprimary amine group and R^(b) is R³ with a tertiary amine group. A morespecific example is set forth below.

In one aspect, compounds of type 12.1, and similar compounds, can beprepared according to reaction Scheme 12B above. Thus, compounds of type12.3 can be prepared by alkylation of an appropriate amine, e.g., 12.2as shown above. The alkylation is carried out in the presence of anappropriate acid, e.g., 86% formic acid, and an appropriate aldehyde,e.g., 37% formaldehyde, at an appropriate temperature, e.g., 80° C., foran appropriate period of time, e.g., 5 hours. As can be appreciated byone skilled in the art, the above reaction provides an example of ageneralized approach wherein compounds similar in structure to thespecific reactants above (compounds similar to compounds of type 8.1),can be substituted in the reaction to provide substituted oxadiazole andthiadiazole analogs similar to Formula 12.1.

13. Route XIII

In one aspect, oxadiazole and thiadiazole analogs can be prepared asshown below.

Compounds are represented in generic form, with substituents as noted incompound descriptions elsewhere herein and wherein PG is an amineprotecting group. A more specific example is set forth below.

In one aspect, compounds of type 13.2, and similar compounds, can beprepared according to reaction Scheme 13B above. Thus, compounds of type13.3 can be prepared by deprotection of an appropriate protected amine,e.g., 10.5 as shown above. The deprotection is carried out in thepresence of an appropriate deprotecting agent, e.g., trifluoroaceticacid, in an appropriate solvent, e.g., dichloromethane, for anappropriate period of time, e.g., 16 hours. Compounds of type 13.4 canbe prepared by acylation of an appropriate amine, e.g., 13.3 as shownabove. The acylation is carried out in the presence of an appropriateacylating agent, e.g., acetic anhydride, and an appropriate base, e.g.,diisopropylethylamine, for an appropriate period of time, e.g., 16hours. As can be appreciated by one skilled in the art, the abovereaction provides an example of a generalized approach wherein compoundssimilar in structure to the specific reactants above (compounds similarto compounds of type 10.2 and 13.1), can be substituted in the reactionto provide substituted oxadiazole and thiadiazole analogs similar toFormula 13.2.

E. Methods of Using the Compounds

The compounds and pharmaceutical compositions of the invention areuseful in treating or controlling disorders associated with TGF-βactivity, in particular, cancers such as, for example, multiple myelomaand hematologic malignancies, immunotherapy, and fibrotic disoders suchas, for example, liver fibrosis, amyoptrophic lateral sclerosis,diabetic nephropathy, muscular dystrophy, PAH, NASH, epidermolysisbullosa, and glaucoma.

Examples of cancers for which the compounds and compositions can beuseful in treating, include, but are not limited to carcinoma, lymphoma,blastoma, sarcoma, and leukemia. More particular examples of suchcancers include breast cancer, prostate cancer, colon cancer, squamouscell cancer, small-cell lung cancer, non-small cell lung cancer,gastrointestinal cancer, pancreatic cancer, cervical cancer, ovariancancer, peritoneal cancer, liver cancer, e.g., hepatic carcinoma,bladder cancer, colorectal cancer, endometrial carcinoma, kidney cancer,and thyroid cancer.

In various aspects, further examples of cancers are basal cellcarcinoma, biliary tract cancer; bone cancer; brain and CNS cancer;choriocarcinoma; connective tissue cancer; esophageal cancer; eyecancer; cancer of the head and neck; gastric cancer; intra-epithelialneoplasm; larynx cancer; lymphoma including Hodgkin's and Non-Hodgkin'slymphoma; melanoma; myeloma; neuroblastoma; oral cavity cancer (e.g.,lip, tongue, mouth, and pharynx); retinoblastoma; rhabdomyosarcoma;rectal cancer; cancer of the respiratory system; sarcoma; skin cancer;stomach cancer; testicular cancer; uterine cancer; cancer of the urinarysystem, as well as other carcinomas and sarcomas.

Examples of fibrotic disorders for which the compounds and compositionscan be useful in treating, include, but are not limited to, pulmonaryfibrosis, glomerulonephritis, liver cirrhosis, diabetic nephropathy,proliferative vitreoretinopathy, systemic sclerosis, scleroderma,muscular dystrophy, amyotrophic lateral sclerosis, PAH, NASH,epidermolysis bullosa, and glaucoma.

To treat or control the disorder, the compounds and pharmaceuticalcompositions comprising the compounds are administered to a subject inneed thereof, such as a vertebrate, e.g., a mammal, a fish, a bird, areptile, or an amphibian. The subject can be a human, non-human primate,horse, pig, rabbit, dog, sheep, goat, cow, cat, guinea pig or rodent.The term does not denote a particular age or sex. Thus, adult andnewborn subjects, as well as fetuses, whether male or female, areintended to be covered. The subject is preferably a mammal, such as ahuman. Prior to administering the compounds or compositions, the subjectcan be diagnosed with a need for treatment of a cancer or of a fibroticdisorder.

The compounds or compositions can be administered to the subjectaccording to any method. Such methods are well known to those skilled inthe art and include, but are not limited to, oral administration,transdermal administration, administration by inhalation, nasaladministration, topical administration, intravaginal administration,ophthalmic administration, intraaural administration, intracerebraladministration, rectal administration, sublingual administration, buccaladministration and parenteral administration, including injectable suchas intravenous administration, intra-arterial administration,intramuscular administration, and subcutaneous administration.Administration can be continuous or intermittent. A preparation can beadministered therapeutically; that is, administered to treat an existingdisease or condition. A preparation can also be administeredprophylactically; that is, administered for prevention of a cancer,immune dysfunction, or a fibrotic disorder.

The therapeutically effective amount or dosage of the compound can varywithin wide limits. Such a dosage is adjusted to the individualrequirements in each particular case including the specific compound(s)being administered, the route of administration, the condition beingtreated, as well as the patient being treated. In general, in the caseof oral or parenteral administration to adult humans weighingapproximately 70 Kg or more, a daily dosage of about 10 mg to about10,000 mg, preferably from about 200 mg to about 1,000 mg, should beappropriate, although the upper limit may be exceeded. The daily dosagecan be administered as a single dose or in divided doses, or forparenteral administration, as a continuous infusion. Single dosecompositions can contain such amounts or submultiples thereof of thecompound or composition to make up the daily dose. The dosage can beadjusted by the individual physician in the event of anycontraindications. Dosage can vary, and can be administered in one ormore dose administrations daily, for one or several days.

1. Treatment Methods

The compounds disclosed herein are useful for treating or controllingdisorders associated with TGF-β activity, in particular, cancers, immunedysfunction, and fibrotic disorders. Thus, provided is a methodcomprising administering a therapeutically effective amount of acomposition comprising a disclosed compound to a subject. In a furtheraspect, the method can be a method for treating cancer. In a stillfurther aspect, the method can be a method for treating a fibroticdisorder. In a still further aspect, the method can be a method fortreating immune dysfunction.

a. Treating Cancer

In one aspect, disclosed are methods of treating cancer associated withTGF-β activity in a mammal, the method comprising the step ofadministering to the mammal an effective amount of at least onedisclosed compound, or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for treating cancer in a subject,the method comprising the step of administering to the subject aneffective amount of at least one compound having a structure representedby a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for treating cancer in a subject,the method comprising the step of administering to the subject aneffective amount of at least one compound having a structure representedby a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby treating cancer in the subject.

Examples of cancers include, but are not limited to, carcinoma,lymphoma, blastoma, sarcoma, and leukemia. More particular examples ofsuch cancers include breast cancer, prostate cancer, colon cancer,squamous cell cancer, small-cell lung cancer, non-small cell lungcancer, gastrointestinal cancer, pancreatic cancer, cervical cancer,ovarian cancer, peritoneal cancer, liver cancer, e.g., hepaticcarcinoma, bladder cancer, colorectal cancer, endometrial carcinoma,kidney cancer, and thyroid cancer.

In various aspects, further examples of cancers are basal cellcarcinoma, biliary tract cancer; bone cancer; brain and CNS cancer;choriocarcinoma; connective tissue cancer; esophageal cancer; eyecancer; cancer of the head and neck; gastric cancer; intra-epithelialneoplasm; larynx cancer; lymphoma including Hodgkin's and Non-Hodgkin'slymphoma; melanoma; myeloma; neuroblastoma; oral cavity cancer (e.g.,lip, tongue, mouth, and pharynx); retinoblastoma; rhabdomyosarcoma;rectal cancer; cancer of the respiratory system; sarcoma; skin cancer;stomach cancer; testicular cancer; uterine cancer; cancer of the urinarysystem, as well as other carcinomas and sarcomas.

In a further aspect, the cancer is a hematological cancer. In a stillfurther aspect, the hematological cancer is selected from acute myeloidleukemia (AML), acute lymphoblastic leukemia (ALL), chronic myeloidleukemia (CML), chronic lymphocytic leukemia (CLL), hairy cell leukemia,chronic myelomonocytic leukemia (CMML), juvenile myelomonocytic leukemia(JMML), Hodgkin lymphoma, Non-Hodgkin lymphoma, multiple myeloma,solitary myeloma, localized myeloma, and extramedullary myeloma. In astill further aspect, the cancer is selected from chronic lymphocyticleukemia, small lymphocytic lymphoma, B-cell non-Hodgkin lymphoma, andlarge B-cell lymphoma.

In a further aspect, the cancer is a cancer of the brain. In a stillfurther aspect, the cancer of the brain is selected from a glioma,medulloblastoma, primitive neuroectodermal tumor (PNET), acousticneuroma, glioma, meningioma, pituitary adenoma, schwannoma, CNSlymphoma, primitive neuroectodermal tumor, craniopharyngioma, chordoma,medulloblastoma, cerebral neuroblastoma, central neurocytoma,pineocytoma, pineoblastoma, atypical teratoid rhabdoid tumor,chondrosarcoma, chondroma, choroid plexus carcinoma, choroid plexuspapilloma, craniopharyngioma, dysembryoplastic neuroepithelial tumor,gangliocytoma, germinoma, hemangioblastoma, hemangiopercytoma, andmetastatic brain tumor. In a yet further aspect, the glioma is selectedfrom ependymoma, astrocytoma, oligodendroglioma, and oligoastrocytoma.In an even further aspect, the glioma is selected from juvenilepilocytic astrocytoma, subependymal giant cell astrocytoma,ganglioglioma, subependymoma, pleomorphic xanthoastrocytom, anaplasticastrocytoma, glioblastoma multiforme, brain stem glioma,oligodendroglioma, ependymoma, oligoastrocytoma, cerebellar astrocytoma,desmoplastic infantile astrocytoma, subependymal giant cell astrocytoma,diffuse astrocytoma, mixed glioma, optic glioma, gliomatosis cerebri,multifocal gliomatous tumor, multicentric glioblastoma multiforme tumor,paraganglioma, and ganglioglioma.

In one aspect, the cancer can be a cancer selected from cancers of theblood, brain, genitourinary tract, gastrointestinal tract, colon,rectum, breast, kidney, lymphatic system, stomach, lung, pancreas, andskin. In a further aspect, the cancer is selected from prostate cancer,glioblastoma multiforme, endometrial cancer, breast cancer, and coloncancer. In a further aspect, the cancer is selected from a cancer of thebreast, ovary, prostate, head, neck, and kidney. In a still furtheraspect, the cancer is selected from cancers of the blood, brain,genitourinary tract, gastrointestinal tract, colon, rectum, breast,liver, kidney, lymphatic system, stomach, lung, pancreas, and skin. In ayet further aspect, the cancer is selected from a cancer of the lung andliver. In an even further aspect, the cancer is selected from a cancerof the breast, ovary, testes, and prostate. In a still further aspect,the cancer is a cancer of the breast. In a yet further aspect, thecancer is a cancer of the ovary. In an even further aspect, the canceris a cancer of the prostate. In a still further aspect, the cancer is acancer of the testes.

In a further aspect, the cancer is selected from a cancer of the breast,cervix, gastrointestinal tract, colorectal tract, brain, skin, prostate,ovary, thyroid, testes, genitourinary tract, pancreas, and endometrias.In a still further aspect, the cancer is a cancer of the breast. In yeta further aspect, the cancer of the breast is a hormone resistantcancer. In an even further aspect, the cancer of the breast is a hormoneresistant cancer. In a still further aspect, the cancer is a cancer ofthe cervix. In yet a further aspect, the cancer is a cancer of theovary. In an even further aspect, the cancer is a cancer of theendometrias. In a still further aspect, the cancer is a cancer of thegenitourinary tract. In yet a further aspect, the cancer is a cancer ofthe colorectal tract. In an even further aspect, the cancer of thecolorectal tract is a colorectal carcinoma. In a still further aspect,the cancer is a cancer of the gastrointestinal tract. In yet a furtheraspect, the cancer of the gastrointestinal tract is a gastrointestinalstromal tumor. In an even further aspect, the cancer is a cancer of theskin. In a still further aspect, the cancer of the skin is a melanoma.In yet a further aspect, the cancer is a cancer of the brain. In an evenfurther aspect, the cancer of the brain is a glioma. In a still furtheraspect, the glioma is glioblastoma multiforme. In yet a further aspect,glioma is selected from is selected from an ependymoma, astrocytoma,oligodendroglioma, and oligoastrocytoma. In an even further aspect, thecancer of the brain is selected from acoustic neuroma, glioma,meningioma, pituitary adenoma, schwannoma, CNS lymphoma, primitiveneuroectodermal tumor, craniopharyngioma, chordoma, medulloblastoma,cerebral neuroblastoma, central neurocytoma, pineocytoma, pineoblastoma,atypical teratoid rhabdoid tumor, chondrosarcoma, chondroma, choroidplexus carcinoma, choroid plexus papilloma, craniopharyngioma,dysembryoplastic neuroepithelial tumor, gangliocytoma, germinoma,hemangioblastoma, and hemangiopercytoma. In a still further aspect, thehematological cancer is selected from a leukemia, lymphoma, chronicmyeloproliferative disorder, myelodysplastic syndrome,myeloproliferative neoplasm, and plasma cell neoplasm (myeloma). In yeta further aspect, the hematological cancer is leukemia. In an evenfurther aspect, the leukemia is selected from acute leukemia, acutelymphocytic leukemia, acute myelocytic leukemia, myeloblastic leukemia,promyelocytic leukemia, myelomonocytic leukemia, monocytic leukemia,erythroleukemia, chronic leukemia, chronic myelocytic (granulocytic)leukemia, and chronic lymphocytic leukemia. In a still further aspect,the leukemia is acute lymphocytic leukemia. In yet a further aspect, thehematological cancer is lymphoma. In an even further aspect, thehematological cancer is myeloma. In a still further aspect, the myelomais multiple myeloma.

In a further aspect, the carcinoma is selected from colon carcinoma,squamous cell carcinoma, basal cell carcinoma, adenocarcinoma, sweatgland carcinoma, sebaceous gland carcinoma, papillary carcinoma,papillary adenocarcinomas, cystadenocarcinoma, medullary carcinoma,bronchogenic carcinoma, renal cell carcinoma, bile duct carcinoma,choriocarcinoma, seminoma, embryonal carcinoma, lung carcinoma, smallcell lung carcinoma, bladder carcinoma, and epithelial carcinoma.

In a further aspect, the cancer is selected from breast cancer, cervicalcancer, gastrointestinal cancer, colorectal cancer, brain cancer, skincancer, prostate cancer, ovarian cancer, thyroid cancer, testicularcancer, pancreatic cancer, endometrial cancer, melanoma, glioma,leukemia, lymphoma, chronic myeloproliferative disorder, myelodysplasticsyndrome, myeloproliferative neoplasm, and plasma cell neoplasm(myeloma).

In a further aspect, the subject has been diagnosed with a need fortreatment of cancer prior to the administering step.

In a further aspect, the subject is a mammal. In a still further aspect,the mammal is a human.

In a further aspect, the method further comprises the step ofidentifying a subject in need of treatment of cancer.

In a further aspect, the method further comprises the step ofadministering a therapeutically effective amount of at least onechemotherapeutic agent. Examples of chemotherapeutic agents include, butare not limited to, alkylating agents such as busulfan, cis-platin,mitomycin C, and carboplatin; antimitotic agents such as colchicine,vinblastine, paclitaxel (e.g., TAXOL®), and docetaxel; topoisomerase Iinhibitors such as camptothecin and topotecan; topoisomerase IIinhibitors such as doxorubicin and etoposide; RNA/DNA antimetabolitessuch as 5-azacytidine, 5-fluorouracil and methotrexate; DNAantimetabolites such as 5-fluoro-2′-deoxy-uridine, ara-C, hydroxyurea,gemcitabine, capecitabine and thioguanine; antibodies such as HERCEPTIN®and RITUXAN®, as well as other known chemotherapeutics such asphotofrin, melphalan, chlorambucil, cyclophosamide, ifosfamide,vincristine, mitoguazone, epirubicin, aclarubicin, bleomycin,mitoxantrone, elliptinium, fludarabine, octreotide, retinoic acid,tamoxifen and alanosine.

In a further aspect, the at least one compound and the at least oneagent are administered sequentially. In a still further aspect, the atleast one compound and the at least one agent are administeredsimultaneously.

In a further aspect, the at least one compound and the at least oneagent are co-formulated. In a still further aspect, the at least onecompound and the at least one agent are co-packaged.

b. Treating a Fibrotic Disorder

In one aspect, disclosed are methods of treating a fibrotic disorderassociated with TGF-β activity in a mammal, the method comprising thestep of administering to the mammal an effective amount of at least onedisclosed compound, or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for treating a fibrotic disorder ina subject, the method comprising the step of administering to thesubject an effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for treating a fibrotic disorder ina subject, the method comprising the step of administering to thesubject an effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby treating the fibrotic disorder in the subject.

Examples of fibrotic disorders for which the compounds and compositionscan be useful in treating, include, but are not limited to, pulmonaryfibrosis, diabetic nephropathy, glomerulonephritis, liver cirrhosis,muscular dystrophy, proliferative vitreoretinopathy, systemic sclerosis,scleroderma, amyotrophic lateral sclerosis, PAH, NASH, epidermolysisbullosa, and glaucoma.

In a further aspect, the subject has been diagnosed with a need fortreatment of the disorder prior to the administering step.

In a further aspect, the subject is a mammal. In a still further aspect,the mammal is a human.

In a further aspect, the method further comprises the step ofidentifying a subject in need of treatment of the fibrotic disorder.

In a further aspect, the method further comprises the step ofadministering a therapeutically effective amount of at least one agentknown to treat a fibrotic disorder. In a still further aspect, the atleast one agent is selected from pirfenidone, nintedanib, aprostaglandin such as latanoprost and bimaotoprost, a beta blocker suchas timolol and betaxolol, an alpha-adrenergic agonist such asapraclonidine and brimonidine, a carbonic anhydrase inhibitor such asdorzolamide and brinzolamide, a moitic or cholinergic agent such aspilocarpine, a diuretic, an angiotenisin-converting enzyme (ACE)inhibitor, an angiotensin II receptor blocker, an anti-inflammatoryagent, and an anti-fibrotic agent.

In a further aspect, the at least one compound and the at least oneagent are administered sequentially. In a still further aspect, the atleast one compound and the at least one agent are administeredsimultaneously.

In a further aspect, the at least one compound and the at least oneagent are co-formulated. In a still further aspect, the at least onecompound and the at least one agent are co-packaged.

c. Treating an Immune Dysfunction

In one aspect, disclosed are methods of treating an immune dysfunctionassociated with TGF-β activity in a mammal, the method comprising thestep of administering to the mammal an effective amount of at least onedisclosed compound, or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for treating an immune dysfunctionin a subject, the method comprising the step of administering to thesubject an effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for treating an immune dysfunctionin a subject, the method comprising the step of administering to thesubject an effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby treating the immune dysfunction in the subject.

In a further aspect, the subject has been diagnosed with a need forimmunotherapy prior to the administering step. Examples of immunotherapyinclude, but are not limited to injection immunotherapy, topicalimmunotherapy, BCG immunotherapy, dendritic cell-based pump-priming,T-cell adoptive transfer, administration of an immunomodulator, immuneenhancement therapy, use of genetically engineered T-cells,antimicrobial immunotherapy, and immunosuppression.

In a further aspect, the subject is a mammal. In a still further aspect,the mammal is a human.

In a further aspect, the method further comprises the step ofidentifying a subject in need of immunotherapy.

In a further aspect, the method further comprises the step ofadministering a therapeutically effective amount of at least one agentknown to treat an immune dysfunction. Examples of agents known to treatimmune dysfunction include, but are not limited to, interleukins (i.e.,IL-2, IL-7, and IL-12), cytokines (i.e., interferons, G-CSF, imiquimod),chemokines (i.e., CCL3, CCL26, and CXCL7), immunomodulatory imide drugs(i.e., thalidomide, lenalidomide, pomalidomide, and apremilast),cytosine phosphate-guanosine, oligodeoxynulceotides, glucans, cytostaticdrugs, glucocorticoids, and immunosuppressive antibodies.

In a further aspect, the at least one compound and the at least oneagent are administered sequentially. In a still further aspect, the atleast one compound and the at least one agent are administeredsimultaneously.

In a further aspect, the at least one compound and the at least oneagent are co-formulated. In a still further aspect, the at least onecompound and the at least one agent are co-packaged.

2. Methods of Inhibiting TGF-b Activity in a Subject

In one aspect, disclosed are methods of inhibiting TGF-β activity in amammal, the method comprising the step of administering to the mammal atherapeutically effective amount of at least one disclosed compound, ora pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for inhibiting TGF-β activity in asubject, the method comprising the step of administering to the subjectan effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for inhibiting TGF-β activity in asubject, the method comprising the step of administering to the subjectan effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby inhibiting TGF-β activity in the subject.

In a further aspect, inhibiting TGF-β is inhibiting cancer. In a stillfurther aspect, the cancer is selected from multiple myeloma or ahematologic malignancy.

In a further aspect, the subject has been diagnosed with a need fortreatment of cancer prior to the administering step. In a still furtheraspect, the method further comprises the step of identifying a subjectin need of treatment of cancer.

In a further aspect, inhibiting TGF-β is inhibiting a fibrotic disorder.In a still further aspect, the fibrotic disorder is found in the liver,the lung, the cardiac muscle, the kidney, the skin, or the eye. In yet afurther aspect, the fibrotic disorder is glaucoma, amyotropic lateralsclerosis, pulmonary arterial hypertension, NASH, epidermolysis bullosa,or muscular dystrophy.

In a further aspect, the subject has been diagnosed with a need fortreatment of the disorder prior to the administering step. In a stillfurther aspect, the method further comprises the step of identifying asubject in need of treatment of the disorder.

In a further aspect, inhibiting TGF-β is associated with immunotherapy.

In a further aspect, the subject has been diagnosed with a need forimmunotherapy prior to the administering step. In a still furtheraspect, the method further comprises the step of identifying a subjectin need of immunotherapy.

In a further aspect, the compound exhibits inhibition of TGF-β activity.In a still further aspect, the compound exhibits a decrease in TGF-βactivity.

In a further aspect, the subject is a mammal. In a still further aspect,the subject is a human.

In a further aspect, the effective amount is a therapeutically effectiveamount. In a still further aspect, the effective amount is aprophylactically effective amount.

In a further aspect, the subject has been diagnosed with a need fortreatment of the disorder prior to the administering step. In a stillfurther aspect, the method further comprises the step of identifying asubject in need of treatment of the disorder.

3. Methods of Inhibiting a TGF-b in at Least One Cell

In one aspect, disclosed are methods for inhibiting TGF-β activity in atleast one cell, the method comprising the step of contacting the atleast one cell with an effective amount of at least one disclosedcompound, or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for inhibiting TGF-β activity in atleast one cell, the method comprising the step of contacting the cellwith an effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.

In one aspect, disclosed are methods for inhibiting TGF-β activity in atleast one cell, the method comprising the step of contacting the cellwith an effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby TGF-β activity in the cell.

In a further aspect, inhibiting TGF-β is associated with treatingcancer. In a still further aspect, inhibiting TGF-β is associated withimmunotherapy. In yet a further aspect, inhibiting TGF-β is associatedwith treating a fibrotic disorder.

In a further aspect, the cell is mammalian. In a still further aspect,the cell is human. In yet a further aspect, the cell has been isolatedfrom a mammal prior to the contacting step.

In a further aspect, contacting is via administration to a mammal. In astill further aspect, the mammal has been diagnosed with a need forinhibition of TGF-β prior to the administering step. In yet a furtheraspect, the mammal has been diagnosed with a need for treatment of adisorder related to dysfunction of TGF-β prior to the administeringstep.

4. Use of Compounds

In one aspect, the invention relates to the use of a disclosed compoundor a product of a disclosed method. In a further aspect, a use relatesto the manufacture of a medicament for the treatment of cancer in amammal. In a still further aspect, a use relates to the manufacture of amedicament for the treatment of a fibrotic disorder in a mammal. In yeta further aspect, the use relates to the manufacture of a medicament forthe treatment of immune dysfunction.

Also provided are the uses of the disclosed compounds and products. Inone aspect, the invention relates to use of at least one disclosedcompound; or a pharmaceutically acceptable salt, hydrate, solvate, orpolymorph thereof. In a further aspect, the compound used is a productof a disclosed method of making.

In a further aspect, the use relates to a process for preparing apharmaceutical composition comprising a therapeutically effective amountof a disclosed compound or a product of a disclosed method of making, ora pharmaceutically acceptable salt, solvate, or polymorph thereof, foruse as a medicament.

In a further aspect, the use relates to a process for preparing apharmaceutical composition comprising a therapeutically effective amountof a disclosed compound or a product of a disclosed method of making, ora pharmaceutically acceptable salt, solvate, or polymorph thereof,wherein a pharmaceutically acceptable carrier is intimately mixed with atherapeutically effective amount of the compound or the product of adisclosed method of making.

In various aspects, the use relates to a treatment of a disorder in amammal. Also disclosed is the use of a compound for antagonism of TGF-βactivity. In one aspect, the use is characterized in that the mammal isa human. In one aspect, the use is characterized in that the disorder isa cancer or a fibrotic disorder. In one aspect, the use is characterizedin that the disorder relates to immune dysfunction.

In a further aspect, the use relates to the manufacture of a medicamentfor the treatment of cancer in a mammal. In a still further aspect, theuse relates to the manufacture of a medicament for the treatment of afibrotic disorder in a mammal. In a still further aspect, the userelates to the manufacture of a medicament for the treatment of immunedysfunction.

In a further aspect, the use relates to antagonism of a TGF-β activityin a mammal. In a further aspect, the use relates to modulating TGF-βactivity in a mammal. In a still further aspect, the use relates tomodulating TGF-β activity in a cell. In yet a further aspect, the mammalis a human.

It is understood that the disclosed uses can be employed in connectionwith the disclosed compounds, products of disclosed methods of making,methods, compositions, and kits. In a further aspect, the inventionrelates to the use of a disclosed compound or a disclosed product in themanufacture of a medicament for the treatment of cancer in a mammal. Ina further aspect, the cancer is selected from multiple myeloma andhematologic malignancy. In a further aspect, the invention relates tothe use of a disclosed compound or a disclosed product in themanufacture of a medicament for the treatment of a fibrotic disorder ina mammal. In a further aspect, the fibrotic disorder is liver fibrosis,diabetic nephropathy, muscular dystrophy, PAH, NASH, epidermolysisbullosa, or glaucoma. In a still further aspect, the use relates to themanufacture of a medicament for the treatment of immune dysfunction.

5. Manufacture of a Medicament

In one aspect, the invention relates to a method for the manufacture ofa medicament for treating a disorder associated with TGF-β in a mammal,the method comprising combining a therapeutically effective amount of adisclosed compound or product of a disclosed method with apharmaceutically acceptable carrier or diluent.

As regards these applications, the present method includes theadministration to an animal, particularly a mammal, and moreparticularly a human, of a therapeutically effective amount of thecompound effective in the inhibition of TGF-β activity. The doseadministered to an animal, particularly a human, in the context of thepresent invention should be sufficient to affect a therapeutic responsein the animal over a reasonable time frame. One skilled in the art willrecognize that dosage will depend upon a variety of factors includingthe condition of the animal and the body weight of the animal.

The total amount of the compound of the present disclosure administeredin a typical treatment is preferably between about 10 mg/kg and about1000 mg/kg of body weight for mice, and between about 100 mg/kg andabout 500 mg/kg of body weight, and more preferably between 200 mg/kgand about 400 mg/kg of body weight for humans per daily dose. This totalamount is typically, but not necessarily, administered as a series ofsmaller doses over a period of about one time per day to about threetimes per day for about 24 months, and preferably over a period of twiceper day for about 12 months.

The size of the dose also will be determined by the route, timing andfrequency of administration as well as the existence, nature and extentof any adverse side effects that might accompany the administration ofthe compound and the desired physiological effect. It will beappreciated by one of skill in the art that various conditions ordisease states, in particular chronic conditions or disease states, mayrequire prolonged treatment involving multiple administrations.

Thus, in one aspect, the invention relates to the manufacture of amedicament comprising combining a disclosed compound or a product of adisclosed method of making, or a pharmaceutically acceptable salt,solvate, or polymorph thereof, with a pharmaceutically acceptablecarrier or diluent.

6. Kits

In one aspect, disclosed are kits comprising at least one compound ofclaim 1 and one or more of: (a) at least one agent known to increaseTGF-β activity; (b) at least one agent known to treat cancer; (c) atleast one agent known to treat a fibrotic disorder; (d) at least oneagent known to an immune dysfunction; (e) instructions for treating adisorder associated with TGF-β dysfunction; (f) instructions fortreating cancer; (g) instructions for treating a fibrotic disorder; and(h) instructions for treating an immune dysfunction.

Examples of cancers for which the compounds and compositions can beuseful in treating, include, but are not limited to carcinoma, lymphoma,blastoma, sarcoma, and leukemia. More particular examples of suchcancers include breast cancer, prostate cancer, colon cancer, squamouscell cancer, small-cell lung cancer, non-small cell lung cancer,gastrointestinal cancer, pancreatic cancer, cervical cancer, ovariancancer, peritoneal cancer, liver cancer, e.g., hepatic carcinoma,bladder cancer, colorectal cancer, endometrial carcinoma, kidney cancer,and thyroid cancer.

In various aspects, further examples of cancers are basal cellcarcinoma, biliary tract cancer; bone cancer; brain and CNS cancer;choriocarcinoma; connective tissue cancer; esophageal cancer; eyecancer; cancer of the head and neck; gastric cancer; intra-epithelialneoplasm; larynx cancer; lymphoma including Hodgkin's and Non-Hodgkin'slymphoma; melanoma; myeloma; neuroblastoma; oral cavity cancer (e.g.,lip, tongue, mouth, and pharynx); retinoblastoma; rhabdomyosarcoma;rectal cancer; cancer of the respiratory system; sarcoma; skin cancer;stomach cancer; testicular cancer; uterine cancer; cancer of the urinarysystem, as well as other carcinomas and sarcomas.

Examples of fibrotic disorders for which the compounds and compositionscan be useful in treating, include, but are not limited to, pulmonaryfibrosis, diabetic nephropathy, glomerulonephritis, liver cirrhosis,proliferative vitreoretinopathy, systemic sclerosis, scleroderma,muscular dystrophy, PAH, NASH, epidermolysis bullosa, and glaucoma.

Examples of agents known to treat cancer include, but are not limitedto, alkylating agents such as busulfan, cis-platin, mitomycin C, andcarboplatin; antimitotic agents such as colchicine, vinblastine,paclitaxel (e.g., TAXOL®), and docetaxel; topoisomerase I inhibitorssuch as camptothecin and topotecan; topoisomerase II inhibitors such asdoxorubicin and etoposide; RNA/DNA antimetabolites such as5-azacytidine, 5-fluorouracil and methotrexate; DNA antimetabolites suchas 5-fluoro-2′-deoxy-uridine, ara-C, hydroxyurea, gemcitabine,capecitabine and thioguanine; antibodies such as HERCEPTIN® andRITUXAN®, as well as other known chemotherapeutics such as photofrin,melphalan, chlorambucil, cyclophosamide, ifosfamide, vincristine,mitoguazone, epirubicin, aclarubicin, bleomycin, mitoxantrone,elliptinium, fludarabine, octreotide, retinoic acid, tamoxifen andalanosine.

Examples of agents known to treat fibrotic disorders include, but arenot limited to, pirfenidone, nintedanib, a prostaglandin such aslatanoprost and bimaotoprost, a beta blocker such as timolol andbetaxolol, an alpha-adrenergic agonist such as apraclonidine andbrimonidine, a carbonic anhydrase inhibitor such as dorzolamide andbrinzolamide, a moitic or cholinergic agent such as pilocarpine, adiuretic, an angiotenisin-converting enzyme (ACE) inhibitor, anangiotensin II receptor blocker, an anti-inflammatory agent, and ananti-fibrotic agent.

Examples of agents known to treat immune dysfunction include, but arenot limited to, interleukins (i.e., IL-2, IL-7, and IL-12), cytokines(i.e., interferons, G-CSF, imiquimod), chemokines (i.e., CCL3, CCL26,and CXCL7), immunomodulatory imide drugs (i.e., thalidomide,lenalidomide, pomalidomide, and apremilast), cytosinephosphate-guanosine, oligodeoxynulceotides, glucans, cytostatic drugs,glucocorticoids, and immunosuppressive antibodies.

In a further aspect, the at least one compound and the at least oneagent are co-formulated. In a further aspect, the at least one compoundand the at least one agent are co-packaged.

The kits can also comprise compounds and/or products co-packaged,co-formulated, and/or co-delivered with other components. For example, adrug manufacturer, a drug reseller, a physician, a compounding shop, ora pharmacist can provide a kit comprising a disclosed compound and/orproduct and another component for delivery to a patient.

It is understood that the disclosed kits can be prepared from thedisclosed compounds, products, and pharmaceutical compositions. It isalso understood that the disclosed kits can be employed in connectionwith the disclosed methods of using.

The foregoing description illustrates and describes the disclosure.Additionally, the disclosure shows and describes only the preferredembodiments but, as mentioned above, it is to be understood that it iscapable to use in various other combinations, modifications, andenvironments and is capable of changes or modifications within the scopeof the invention concepts as expressed herein, commensurate with theabove teachings and/or the skill or knowledge of the relevant art. Theembodiments described herein above are further intended to explain bestmodes known by applicant and to enable others skilled in the art toutilize the disclosure in such, or other, embodiments and with thevarious modifications required by the particular applications or usesthereof. Accordingly, the description is not intended to limit theinvention to the form disclosed herein. Also, it is intended to theappended claims be construed to include alternative embodiments.

All publications and patent applications cited in this specification areherein incorporated by reference, and for any and all purposes, as ifeach individual publication or patent application were specifically andindividually indicated to be incorporated by reference. In the event ofan inconsistency between the present disclosure and any publications orpatent application incorporated herein by reference, the presentdisclosure controls.

F. Examples

The following preparations and examples are given to enable thoseskilled in the art to more clearly understand and to practice thepresent invention. They should not be considered as limiting the scopeof the invention, but merely as being illustrative and representative.

1. General Experimental Methods

The reactions were performed under a dry argon atmosphere and reactiontemperatures were measured externally. Anhydrous solvents over molecularsieves were purchased from Aldrich and used as such in reactions.Purification of compounds was performed on an Isco Teledyne CombiflashRf200 with four channels to carryout sequential purification. UniversalRediSep solid sample loading pre-packed cartridges (5.0 g Silica) wereused to absorb crude product and purified on 12 g silica RediSep Rf GoldSilica (20-40 m spherical silica) columns using appropriate solventgradients. Pure samples were dried overnight under high vacuum over P₂O₅at 78° C. before analyses. The reactions were monitored by thin-layerchromatography (TLC) on pre-coated silica gel (60F₂₅₄) aluminium plates(0.25 mm) from E. Merck and visualized using UV light (254 nm). Puresamples were dried overnight under high vacuum over P₂O₅ at 78° C.before analyses. The HR-mass spectral data were obtained on an AgilentLC-MSTOF by electrospray ionization (ESI). ¹H NMR spectra were recordedat 400 MHz on Agilent/Varian MR-400 spectrometer in CDCl₃ or DMSO-d₆ assolvents. The chemical shifts (6) are in ppm downfield from standardtetramethylsilane (TMS). Coupling constants (J) are reported in Hertz(Hz). Purity of final compounds was checked by HPLC using Waters HPLCequipped with a 3100 Mass Detector using Sunfire C18 column (5 m,4.6×150 mm) using Acetonitrile-H₂O (both containing 0.1% formic acid)10-90% in 15 min.

2. General Synthesis of Oxadiazoles (Route I)

a. General Procedure for the Preparation of Diacyl Hydrazide Analogs

To a dry round-bottom flask equipped with a stir bar was addedcarboxylic acid (0.85 mmol) and acetonitrile (22 mL).3-hydrazinyl-3-oxopropanamide (0.85 mmol) was added, followed by DIPEA(1.3 mmol). After stirring for ten minutes under argon at roomtemperature, HATU (1.0 mmol) was added, and the reaction was stirred for18-24 hours until deemed complete by TLC. The mixture was concentratedunder reduced pressure, then the diacyl hydrazide analogues wereobtained by triturating the solid residue with DCM and filtering theresulting heterogeneous mixture.

i. (S)-(9H-Fluoren-9-yl)methyl tert-butyl(6-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate(1)

(S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate(1) was obtained as a yellow solid in 75% total yield (361 mg) byfollowing the general procedure for the preparation of diacyl hydrazideanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=10.05-9.96 (brs,2H), 7.89 (d, J=1.08 Hz, 2H), 7.68 (d, J=1.34 Hz, 2H), 7.45-7.37 (m,3H), 7.36-7.30 (m, 2H), 7.29-7.23 (m, 1H), 7.11-7.07 (brs, 1H), 6.88 (d,J=2.20 Hz, 1H), 4.32-4.25 (m, 2H), 4.23-4.17 (m, 1H), 3.98-3.90 (m, 1H),3.04 (s, 2H), 3.00-2.91 (m, 2H), 1.68-1.43 (m, 3H), 1.43-1.27 (m, 12H).MS (APCI): m/z=590.3 [M+Na].

ii. (S)-(9H-Fluoren-9-yl)methyl tert-butyl(5-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-5-oxopentane-1,4-diyl)dicarbamate(2)

(S)-(9H-fluoren-9-yl)methyl tert-butyl(5-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-5-oxopentane-1,4-diyl)dicarbamate(2) was obtained as a yellow solid in 82% total yield (390 mg) byfollowing the general procedure for the preparation of diacyl hydrazideanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=10.08-9.99 (brs,1H), 8.53-8.41 (brs, 1H), 8.32-8.24 (brs, 1H), 7.89 (d, J=10.66 Hz, 2H),7.68 (d, J=14.7 Hz, 2H), 7.48-7.37 (m, 3H), 7.37-7.23 (m, 4H), 4.32-4.25(m, 2H), 4.25-4.16 (m, 1H), 4.02-3.90 (m, 1H), 3.04 (s, 2H), 3.00-2.94(m, 2H), 1.51-1.42 (m, 4H), 1.37 (s, 9H). MS (APCI): m/z=576.3 [M+Na]

iii. tert-Butyl(S)-(3-(4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenyl)-1-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate(3)

Tert-butyl(S)-(3-(4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenyl)-1-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate(3) was obtained as a yellow solid in 48% total yield (246 mg) byfollowing the general procedure for the preparation of diacyl hydrazideanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=10.21-10.05 (brs,1H), 9.69-9.56 (brs, 1H), 7.91 (d, J=7.5 Hz, 2H), 7.75 (d, J=7.32 Hz,2H, 7.46-7.39 (m, 3H), 7.38-7.31 (m, 3H), 7.23-7.16 (m, 2H), 7.12-7.08(brs, 1H), 6.96-6.90 (brs, 1H), 4.49-4.43 (m, 2H), 4.33-4.27 (m, 1H),4.22-4.12 (m, 1H), 3.19-3.14 (m, 1H), 3.08-3.05 (m, 1H), 2.94-2.87 (m,1H), 2.69 (s, 1H), 1.30 (s, 9H). MS (APCI): m/z=624.3 [M+Na].

iv. tert-Butyl(S)-(3-(4-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)phenyl)-1-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate(4)

tert-butyl(S)-(3-(4-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)phenyl)-1-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate(4) was obtained as a yellow solid in 73% total yield (382 mg) byfollowing the general procedure for the preparation of diacyl hydrazideanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=10.24-10.16 (brs,1H), 10.13-10.04 (brs, 1H), 7.91-7.85 (m, 2H), 7.83-7.77 (m, 1H),7.73-7.64 (m, 2H), 7.45-7.39 (m, 2H), 7.35-7.29 (m, 2H), 7.28-7.20 (m,2H), 7.15-7.07 (m, 2H), 6.99-6.92 (m, 1H), 4.37-4.30 (m, 2H), 4.27-4.17(m, 2H), 4.17-4.08 (m, 2H), 3.07 (s, 2H), 2.63-2.52 (m, 1H), 2.48-2.38(m, 1H), 1.29 (s, 9H). MS (APCI): m/z=638.2 [M+Na].

v. tert-Butyl(S)-(3-(3-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)phenyl)-1-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate(5)

tert-butyl(S)-(3-(3-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)phenyl)-1-(2-(3-amino-3-oxopropanoyl)hydrazinyl)-1-oxopropan-2-yl)carbamate(5) was obtained as a yellow solid in 78% total yield (408 mg) byfollowing the general procedure for the preparation of diacyl hydrazideanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=10.24-10.16 (brs,1H), 10.11-10.03 (brs, 1H), 7.89 (d, J=7.7 Hz, 2H), 7.85-7.80 (m, 1H),7.71 (d, J=7.4 Hz, 2H), 7.45-7.38 (m, 3H), 7.35-7.29 (m, 2H), 7.24-7.17(m, 3H), 7.13-7.04 (m, 2H), 7.03-6.96 (m, 1H), 4.33 (d, J=7 Hz, 2H),4.26-4.19 (m, 2H), 4.19-4.13 (m, 2H), 3.06 (s, 2H), 3.00-2.93 (m, 1H),2.79-2.70 (m, 1H), 1.30 (s, 9H). MS (APCI): m/z=638.3 [M+Na].

b. General Procedure for the Preparation of Oxadiazole Analogs

To a solution of diacyl hydrazide (0.388 mmol) in acetonitrile (16.0 mL)was added DMAP (118 mg, 0.969 mmol) followed by TsCl (185 mg, 0.969mmol)). The reaction was heated to reflux and stirred for 6 hr underargon until the reaction was deemed complete by TLC. The crude mixturewas concentrated under reduced pressure, then purified by silica gelchromatography with MeOH/DCM 5:95 to afford the pure oxadiazole.

i. (S)-(9H-Fluoren-9-yl)methyl tert-butyl(1-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)pentane-1,5-diyl)dicarbamate(6)

(S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)pentane-1,5-diyl)dicarbamate(6) was obtained as an orange solid in 36% total yield (77.1 mg) byfollowing the general procedure for the preparation of oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, CDCl₃): δ=7.78-7.72 (m, 2H),7.62-7.54 (m, 2H), 7.42-7.35 (m, 2H), 7.08-7.01 (brs, 1H), 6.30-6.18(brs, 1H), 5.70-5.57 (m, 1H), 5.27-5.16 (brs, 1H), 5.03-4.88 (m, 1 H),4.38-4.31 (m, 2H), 4.24-4.14 (m, 1H), 3.85 (s, 2H), 3.20-3.00 (m, 2H),1.98-1.78 (m, 2H), 1.56-1.46 (m, 2H), 1.46-1.37 (m, 12H). MS (APCI):m/z=572.2 [M+Na].

ii. (S)-(9H-Fluoren-9-yl)methyl tert-butyl(1-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)butane-1,4-diyl)dicarbamate(7)

(S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)butane-1,4-diyl)dicarbamate(7) was obtained as an orange solid in 29% total yield (60.3 mg) byfollowing the general procedure for the preparation of oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, CDCl₃): δ=7.74 (d, J=7.6 Hz,2H), 7.57 (d, J=7.4 Hz, 2H), 7.41-7.34 (m, 2H), 7.31-7.25 (m, 2H),6.97-6.90 (brs, 1H), 5.57-5.44 (brs, 1H), 5.28-5.16 (brs, 1H), 5.04-4.87(brs, 1H), 4.46-4.28 (m, 2H), 4.23-4.11 (m, 1H), 3.83 (s, 2H), 3.25-3.12(m, 2H), 2.05-1.90 (m, 1H), 1.90-1.78 (m, 1H), 1.65-1.50 (m, 2H), 1.42(s, 9H). MS (APCI): m/z=558.2 [M+Na].

c. General Procedure for the Preparation of N-Acyl Oxadiazole Analogs

To a solution of oxadiazole (0.175 mmol) in dichloromethane (4.30 mL) atrt was added 2,2,2-trifluoroacetic acid (0.870 mL, 11.27 mmol) dropwiseand stirred at rt for 4 hr. The solvent was removed under reducedpressure until all excess TFA was removed. The resulting oily residuewas dissolved in dichloromethane (5.00 mL) and cooled to 0° C. under anatmosphere of argon. Acyl chloride (0.205 mmol) was added, followed bydropwise addition of DIEA (0.392 mmol, 60.0 μL). The mixture was warmedto room temperature, and stirred 6-24 hours under argon until thereaction was deemed complete by TLC. The crude mixture was concentratedunder reduced pressure, then the N-acylated products were obtained bytriturating the solid residue with DCM and filtering the resultingheterogeneous mixture.

i. (9H-Fluoren-9-yl)methyl(S)-(5-acetamido-5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)pentyl)carbamate(8)

(9H-Fluoren-9-yl)methyl(S)-(5-acetamido-5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)pentyl)carbamate(8) was obtained as a colorless solid in 63% total yield (24.0 mg) byfollowing the general procedure for the preparation of N-acyl oxadiazoleanalogs outlined above; ESI-MS m/z: 492.2 [M+H]⁺. ¹H NMR (400 MHz,DMSO-d₆): δ 8.50 (d, 1H, J=8.2 Hz, NH), 7.87 (d, 2H, J=7.3 Hz, ArH),7.70 (bs, 1H, CONH₂), 7.66 (d, J=7.4 Hz, 2H, ArH), 7.41-7.18 (m, 6H,ArH, NHFmoc, CONH₂), 5.02-4.99 (m, 1H, NHCH), 4.27 (d, J=6.9 Hz, 2H,FmocCH₂), 4.18 (t, J=6.8 Hz, 1H, FmocCH), 3.77 (s, 2H, CH₂CONH₂), 2.94(q, J=6.4 Hz, 2H, CH₂NHFmoc), 1.84 (s, 3H, Ac), 1.82-1.67 (m, 2H, CH₂),1.43-1.19 (m, 4H, CH₂).

ii. (S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-benzamidopentyl)carbamate(9)

(S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-benzamidopentyl)carbamate(9) was obtained as a light yellow solid in 69% total yield (65.5 mg) byfollowing the general procedure for the preparation of N-acyl oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, CDCl₃): δ=7.83-7.77 (m, 2H),7.77-7.70 (m, 2H), 7.55-7.50 (m, 2H), 7.43-7.35 (m, 4H), 7.34-7.27 (m,3H), 6.95-6.84 (brs, 1H), 5.94-5.84 (brs, 1H), 5.56-5.42 (m, 1H), 5.10(t, J=6.0 Hz, 1H), 4.44-4.29 (m, 1H), 4.27-4.18 (m, 1H), 4.18-4.09 (m,1H), 3.81 (s, 2H), 3.27-3.05 (m, 2H), 2.10-1.93 (m, 3H), 1.55-1.44 (m,3H). MS (APCI): m/z=554.2 [M+H].

iii. (S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-butyramidopentyl)carbamate(10)

(S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-butyramidopentyl)carbamate(10) was obtained as a white solid in 39% total yield (34.7 mg) byfollowing the general procedure for the preparation of N-acyl oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, CDCl₃): δ=7.76 (d, J=7.6 Hz,2H), 7.58 (d, J=7.6 Hz, 2H), 7.39 (t, J=7.4 Hz, 2H), 7.30 (t, J=7.4 Hz,2H), 6.94-6.82 (m, 2H), 6.64-6.56 (m, 1H), 6.94-6.82 (m, 2H), 5.12-5.01(m, 1H), 4.46-4.29 (m, 2H), 4.27-4.15 (m, 1H), 3.84 (s, 2H), 3.23-3.11(m, 2H), 2.25-2.14 (m, 3H), 2.06-1.81 (m, 4H), 1.68-1.60 (m, 3H), 0.90(t, J=6.9 Hz, 3H). MS (APCI): m/z=520.3 [M+H].

iv. (S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-(cyclohexanecarboxamido)pentyl)carbamate(11)

(S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-(cyclohexanecarboxamido)pentyl)carbamate(11) was obtained as a cream solid in 70% total yield (67.0 mg) byfollowing the general procedure for the preparation of N-acyl oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=8.32 (d, J=8.2 Hz,1H), 7.88 (d, J=7.4 Hz, 2H), 7.68 (d, J=7.4 Hz, 2H), 7.71-7.64 (brs,1H), 7.44-7.38 (m, 2H), 7.32 (ddd, J=1.2, 7.5, 8.7 Hz, 2H), 7.29-7.21(m, 2H), 5.07-4.95 (m, 1H), 4.31-4.23 (m, 2H), 4.23-4.15 (m, 1H), 3.77(s, 2H), 3.00-2.90 (m, 2H), 2.22-2.09 (m, 1H), 1.72-1.62 (m, 4H),1.46-1.08 (m, 12H). MS (APCI): m/z=560.3 [M+H].

v. (S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-propionamidopentyl)carbamate(12)

(S)-(9H-Fluoren-9-yl)methyl(5-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)-5-propionamidopentyl)carbamate(12) was obtained as a white solid in 46% total yield (39.8 mg) byfollowing the general procedure for the preparation of N-acyl oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=8.42 (d, J=8.2 Hz,1H), 7.88 (d, J=7.6 Hz, 1H), 7.68 (d, J=7.7 Hz, 1H), 7.74-7.62 (brs,1H), 7.44-7.38 (m, 2H), 7.33 (ddd, J=1.2, 7.5, 8.6 Hz, 2H), 7.29-7.21(m, 2H), 5.08-5.00 (m, 1H), 4.32-4.24 (m, 2H), 4.23-4.16 (m, 1H), 3.79(s, 2H), 2.96 (q, J=6.3 Hz, 2H), 2.19-2.05 (m, 2H), 1.88-1.69 (m, 2H),1.45-1.35 (m, 2H), 1.35-1.20 (m, 2H), 0.99 (t, J=7.6 Hz). MS (APCI):m/z=506.2 [M+H].

vi. (S)-(9H-Fluoren-9-yl)methyl(4-acetamido-4-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)butyl)carbamate(13)

(S)-(9H-Fluoren-9-yl)methyl(4-acetamido-4-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)butyl)carbamate(13) was obtained as a white solid in 56% total yield (45.7 mg) byfollowing the general procedure for the preparation of N-acyl oxadiazoleanalogs outlined above; ¹H NMR (400 MHz, DMSO-d₆): δ=8.52 (d, J=8.3 Hz,1H), 7.88 (d, J=7.4 Hz, 2H), 7.68 (d, J=7.6 Hz, 2H), 7.72-7.60 (brs,1H), 7.44-7.37 (m, 2H), 7.36-7.28 (m, 3H), 5.10-5.02 (m, 1H), 4.39-4.15(m, 4H), 3.79 (s, 1H), 3.06-2.90 (m, 3H), 1.89-1.79 (m, 3H), 1.77-1.22(m, 4H). MS (APCI): m/z=478.2 [M+H].

d. General Procedure for the Preparation of Amino Oxadiazole Analogs

A solution of Fmoc-protected oxadiazole (0.033 mmol) in Acetonitrile (2ml) or DMF (0.5 mL) was treated with piperidine (6.76 μL, 0.068 mmol).The mixture was stirred at rt for 4-6 hours under argon until deemedcomplete by TLC. The mixture was concentrated under reduced pressure,then the amino oxadiazole derivatives were obtained by products wereobtained by triturating the solid residue with DCM and filtering theresulting heterogeneous mixture.

i. (S)-2-(5-(1-Acetamido-5-aminopentyl)-1,3,4-oxadiazol-2-yl)acetamide(14)

(S)-2-(5-(1-Acetamido-5-aminopentyl)-1,3,4-oxadiazol-2-yl)acetamide (14)was obtained as a colorless solid in 64% total yield (7.0 mg) byfollowing the general procedure for the preparation of amino oxadiazoleanalogs outlined above; ESI-MS m/z: 270.1 [M+H]⁺. ¹H NMR (400 MHz,DMSO-d₆): δ 8.53 (d, 1H, J=8.2 Hz, NH), 7.70 (bs, 1H, CONH₂), 7.22 (bs,1H, CONH₂), 5.04-4.97 (m, 1H, NHCH), 3.77 (s, 2H, CH₂CONH₂), 1.84 (s,3H, Ac), 1.82-1.66 (m, 2H, CH₂), 1.39-1.22 (m, 4H, CH₂). HRMS calcd for[C₁₁H₁₉N₅O₃+H]⁺: 269.1488, Found: 269.1488.

ii.(S)—N-(5-Amino-1-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)pentyl)benzamide(15)

(S)—N-(5-Amino-1-(5-(2-amino-2-oxoethyl)-1,3,4-oxadiazol-2-yl)pentyl)benzamide(15) was obtained as a yellow solid in 80% total yield (8.6 mg) byfollowing the general procedure for the preparation of amino oxadiazoleanalogs outlined above; MS (APCI): m/z=332.2 [M+H].

3. General Synthesis of Disubstituted Oxadiazoles

a. Preparation of(S)-tert-Butyl-2-(6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-acetamidohexanoyl)hydrazinecarboxylate(17)

To a rapidly stirring mixture of(S)-6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-acetamidohexanoicacid (16) (200 mg, 0.487 mmol) in DMF (12.2 mL) was added tert-butylhydrazinecarboxylate (64.4. mg, 0.487 mmol) followed by DIPEA (128 μL,0.731 mmol). After stirring for ten minutes, HATU (222 mg, 0.585 mmol)was added, and mixture was stirred overnight. The mixture wasconcentrated under reduced pressure, then the residue was purified bysilica gel chromatography (DCM-MeOH 95:5) to give(S)-tert-butyl2-(6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-acetamidohexanoyl)hydrazinecarboxylate(17) (96.3 mg, 0.184 mmol, 38%) as a white solid. ¹H NMR (400 MHz,CDCl₃): δ=8.68-8.62 (brs, 1H), 7.74 (d J=7.4 Hz, 2H), 7.60-7.51 (m, 2H),7.37 (t, J=7.5 Hz, 2H), 7.31-7.26 (m, 2H), 6.90-6.83 (brs, 1H), 6.80 (dJ=7.6 Hz, 1H), 4.45-4.29 (m, 3H), 4.22-4.14 (m, 1H), 3.19-3.06 (m, 3H),2.99-2.90 (brs, 1H), 2.80-2.73 (brs, 1H), 2.17 (s, 3H), 2.01-1.95 (m,3H), 1.89-1.76 (m, 1H), 1.76-1.63 (m, 1H), 1.55-1.45 (m, 2H), 1.41 (s,9H). MS (APCI): m/z=547.3 [M+Na]⁺.

b. Preparation of Ethyl3-(2-(N6-(((9H-fluoren-9-yl)methoxy)carbonyl)-N2-acetyl-L-lysyl)hydrazinyl)-2,2-dimethyl-3-oxopropanoate(18)

To a solution of(S)-tert-butyl-2-(6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-acetamidohexanoyl)hydrazinecarboxylate(17) (96 mg, 0.183 mmol) in DCM (4.46 mL) at room temperature was added2,2,2-trifluoroacetic acid (282 μL, 3.66 mmol) dropwise and stirred atrt for 4 hours. The solvent was removed under reduced pressure until allexcess TFA was removed. The resulting oily residue was dissolved in DMf(4.59 mL), then 3-ethoxy-2,2-dimethyl-3-oxopropanoic acid (29.4 mg,0.184 mmol) was added, followed by DIPEA (99 μL, 0.570 mmol). Afterstirring for ten minutes, HATU (84.0 mg, 0.220 mmol) was added and thereaction mixture was stirred at room temperature for 18 hours. Themixture was concentrated under reduced pressure, then the residue waspurified by silica gel chromatography (DCM-MeOH 95:5) to give ethyl3-(2-(N6-(((9H-fluoren-9-yl)methoxy)carbonyl)-N2-acetyl-L-lysyl)hydrazinyl)-2,2-dimethyl-3-oxopropanoate(18) (66.0 mg, 0.116 mmol, 63%) as a colorless oil. ¹H NMR (400 MHz,CDCl₃): δ=9.00-8.93 (brs, 1H), 8.89-8.79 (brs, 1H), 7.79-7.73 (m, 2H),7.60-7.54 (m, 2H), 7.42-7.36 (m, 2H), 7.33-7.28 (m, 2H), 6.46-6.34 (brs,1H), 5.16-5.03 (brs, 1H), 4.53-4.30 (m, 3H), 4.20 (q, J=7.15 Hz, 2H),3.25-3.12 (m, 2H), 1.99 (s, 3H), 1.93-1.83 (m, 1H), 1.78-1.67 (m, 1H),1.57-1.39 (m, 10H), 1.27 (t, J=7.14 Hz, 3H). MS (APCI): m/z=567.3 [M+H].

c. Preparation of Ethyl(S)-2-(5-(5-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-1-acetamidopentyl)-1,3,4-oxadiazol-2-yl)-2-methylpropanoate(19)

To a solution of (S)-ethyl3-(2-(6-((((9h-fluoren-9-yl)methoxy)carbonyl)amino)-2-acetamidohexanoyl)hydrazinyl)-2,2-dimethyl-3-oxopropanoate(18) (66 mg, 0.116 mmol) in acetonitrile (4.85 mL) was added DMAP (28.5mg, 0.233 mmol) followed by tosyl chloride (44.4 mg, 0.233 mmol). Thereaction tube was sealed and heated to 120° C. under microwaveconditions for 20 minutes. The reaction mixture was cooled to roomtemperature and concentrated under reduced pressure. The oily residuewas purified by silica gel chromatography (DCM-MeOH 95:5) to give ethyl(S)-2-(5-(5-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-1-acetamidopentyl)-1,3,4-oxadiazol-2-yl)-2-methylpropanoate(19) (17.0 mg, 0.031 mmol, 27%) as a colorless oil. Analysis is inprogress MS (APCI): m/z=549.3 [M+H].

4. General Synthesis of Thiadiazoles (Route I)

a. General Procedure for the Preparation of Diacyl Hydrazide analogs

i. (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-acetylhydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate (20)

To a stirred solution of(S)-6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)hexanoicacid (0.5 g, 1.067 mmol) in Acetonitrile (15 ml) was addedacetohydrazide (0.079 g, 1.067 mmol) followed by HATU (0.406 g, 1.067mmol) and DIPEA (0.373 ml, 2.134 mmol) and the reaction mixture wasstirred at rt for 1 h. Solid crashed out, filtered, filtrate was washedwith DCM, dried to afford (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-acetylhydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate (20) (0.460 g,0.877 mmol, 82% yield). 1H NMR (400 MHz, DMSO-d6) δ 9.83-9.75 (m, 2H),7.87 (dt, J=7.5, 0.9 Hz, 2H), 7.67 (d, J=7.5 Hz, 2H), 7.42-7.37 (m, 2H),7.31 (td, J=7.5, 1.1 Hz, 2H), 7.25 (t, J=5.7 Hz, 1H), 6.86 (d, J=8.1 Hz,1H), 4.27 (d, J=7.0 Hz, 2H), 4.19 (t, J=6.9 Hz, 1H), 3.90 (q, J=8.3 Hz,1H), 2.94 (d, J=6.9 Hz, 2H), 1.81 (d, J=1.5 Hz, 3H), 1.53 (dd, J=18.9,10.5 Hz, 2H), 1.48 (s, 2H), 1.34 (s, 10H), 1.18-1.29 (m, 1H). MS m/z 547[M+Na]⁺

ii. (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-benzoylhydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate (21)

General procedure was followed with2-(3H-[1,2,3]triazolo[4,5-b]pyridin-3-yl)-1,1,3,3-tetramethylisouroniumhexafluorophosphate(V) (0.243 g, 0.640 mmol) and benzohydrazide (0.073g, 0.534 mmol) to afford (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-benzoylhydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate (21) (0.201 g,0.343 mmol, 64.2% yield) as white solid. 1H NMR (400 MHz, DMSO-d6) δ10.34 (s, 1H), 9.90 (s, 1H), 7.88-7.80 (m, 4H), 7.64 (d, J=7.5 Hz, 2H),7.52 (t, J=7.3 Hz, 1H), 7.44 (t, J=7.5 Hz, 2H), 7.37 (dd, J=8.0, 7.0 Hz,2H), 7.29 (t, J=7.4 Hz, 2H), 7.24 (t, J=5.8 Hz, 1H), 6.86 (d, J=8.2 Hz,1H), 4.25 (d, J=6.9 Hz, 2H), 4.17 (t, J=6.9 Hz, 1H), 3.91-4.01 (m, 1H),2.95 (d, J=6.6 Hz, 2H), 1.58-1.66 (m, 2H), 1.54 (s, 2H), 1.34 (s, 9H),1.20 (s, 2H). MS m/z 487 [M-Boc+H]⁺, 609 [M+Na]⁺.

iii. (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-(cyclopropanecarbonyl)hydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate(22)

General procedure was followed with(S)-6-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)hexanoicacid (0.25 g, 0.534 mmol) and cyclopropanecarbohydrazide (0.053 g, 0.534mmol) to afford (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-(cyclopropanecarbonyl)hydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate(0.211 g, 0.383 mmol, 71.8% yield) to afford (S)-(9H-fluoren-9-yl)methyltert-butyl(6-(2-(cyclopropanecarbonyl)hydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate(22) (0.211 g, 0.383 mmol, 71.8% yield) as white solid. 1H NMR (400 MHz,DMSO-d6) δ 9.98 (s, 1H), 9.73 (s, 1H), 7.84 (d, J=7.5 Hz, 2H), 7.64 (d,J=7.4 Hz, 2H), 7.41-7.33 (m, 2H), 7.29 (t, J=7.5 Hz, 2H), 7.21 (d, J=5.7Hz, 1H), 6.8 (d, J=8.1 Hz, 1H), 4.24 (d, J=7.0 Hz, 2H), 4.15 (d, J=7.1Hz, 1H), 3.87 (d, J=5.9 Hz, 1H), 2.91 (d, J=6.6 Hz, 2H), 1.51 (d, J=27.7Hz, 3H), 1.32 (s, 12H), 0.71-0.62 (m, 4H). MS m/z 451 [(M-Boc)+H]⁺.

b. General Procedure for the Preparation of Thiadiazoles

i. (S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-phenyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate (23)

To a stirred mixture of (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-benzoylhydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate (0.20 g, 0.341mmol) in THF (7 ml) was added Lawesson's Reagent (0.145 g, 0.358 mmol)under inert atmosphere and reaction mixture was heated to 70° C. Uponheating mixture turned into clear solution. After 2.5 h at 70° C., TLCshowed starting material is still present, another 0.5 eq. of Lawesson'sReagent (0.145 g, 0.358 mmol) was added and reaction mixture was heatedfor 1 h. Solvents were removed in vacuo and obtained residue waspurified through MPLC to afford (S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-phenyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate (23)(0.142 g, 0.243 mmol, 71.2% yield) as a white solid. 1H NMR (400 MHz,DMSO-d6) δ 7.93 (d, J=6.3 Hz, 2H), 7.84 (dd, J=14.9, 7.6 Hz, 3H), 7.65(d, J=7.5 Hz, 2H), 7.56-7.49 (m, 3H), 7.39 (t, J=7.4 Hz, 2H), 7.33-7.22(m, 3H), 4.87 (s, 1H), 4.27 (d, J=6.9 Hz, 2H), 4-16-4.19 (m, 1H), 2.96(d, J=6.6 Hz, 2H), 1.91 (s, 1H), 1.83 (s, 1H), 1.4-1.47 (m, 2H), 1.38(s, 9H), 1.24-1.34 (s, 2H). MS m/z 585 [M+H]⁺.

ii. (S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-methyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate (24)

To a stirred mixture of (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-acetylhydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate (0.25 g, 0.477mmol) in THF (7 ml) was added Lawesson's Reagent (0.202 g, 0.500 mmol)under inert atmosphere and reaction mixture was heated to 70° C. Uponheating mixture turned into clear solution. Solvents were removed invacuo and obtained residue was purified through MPLC to afford(S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-methyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate (24)(0.147 g, 0.281 mmol, 59.0% yield). 1H NMR (400 MHz, DMSO-d6) δ 7.84 (d,J=7.5 Hz, 2H), 7.63 (d, J=7.5 Hz, 2H), 7.37 (t, J=7.5 Hz, 2H), 7.28 (tt,J=7.5, 0.9 Hz, 2H), 7.22 (t, J=5.8 Hz, 1H), 6.92-6.94 (m, 1H), 4.76 (d,J=7.7 Hz, 1H), 4.25 (d, J=6.9 Hz, 2H), 4.16 (t, J=6.9 Hz, 1H), 2.92 (q,J=6.4 Hz, 2H), 2.67-2.52 (m, 3H), 1.78 (s, 2H), 1.34 (s, 10H), 1.28 (s,3H). MS m/z 523 [M+H]⁺.

iii. (S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate(25)

To a stirred mixture of (S)-(9H-fluoren-9-yl)methyl tert-butyl(6-(2-(cyclopropanecarbonyl)hydrazinyl)-6-oxohexane-1,5-diyl)dicarbamate(0.211 g, 0.383 mmol) in THF (7 ml) was added Lawesson's Reagent (0.155g, 0.383 mmol) under inert atmosphere and reaction mixture was heated to70° C. Upon heating mixture turned into clear solution. After 2.5 h at70° C. TLC showed starting material is still present, another 0.5 eq. ofLawesson's Reagent (0.145 g, 0.358 mmol) was added and reaction mixturewas heated 70° C. for 1 h. Solvents were removed in vacuo and obtainedresidue was purified at MPLC to afford (S)-(9H-fluoren-9-yl)methyltert-butyl(1-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate(25) (0.175 g, 0.319 mmol, 83% yield). 1H NMR (400 MHz, DMSO-d6) δ 7.87(d, J=7.5 Hz, 2H), 7.73-7.58 (m, 3H), 7.43-7.37 (m, 2H), 7.31 (ddd,J=8.4, 7.0, 1.1 Hz, 2H), 7.25 (t, J=5.7 Hz, 1H), 4.76 (d, J=6.7 Hz, 1H),4.27 (d, J=7.0 Hz, 2H), 4.18 (t, J=6.8 Hz, 1H), 3.15 (s, 1H), 2.94 (q,J=6.5 Hz, 2H), 2.42 (dt, J=8.6, 4.7 Hz, 1H), 1.36 (s, 9H), 1.32-1.25 (m,2H), 0.99-0.90 (m, 2H). MS m/z 449 [[(M-Boc)+H]⁺.

c. General Procedure for the Preparation of N-Acyl Thiadiazole Analogs

i. (S)-(9H-fluoren-9-yl)methyl(5-amino-5-(5-phenyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate (26)

To a stirred solution of (S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-phenyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate (0.140g, 0.239 mmol) in DCM (4 ml) was added trifluoroacetic acid (0.369 mL,4.79 mmol) under inert atmosphere and the reaction mixture was stirredat rt for 3 h. Solvents were removed in vacuo and obtained sticky solidwas used in next step without further purification. Solvents wereremoved under vacuum and co-evaporated with DCM two times. A stickysolid was obtained and used in the next step without furtherpurification. 1H NMR (400 MHz, DMSO-d6) δ 8.74 (s, 3H), 8.02-7.93 (m,2H), 7.85 (d, J=7.6 Hz, 2H), 7.64-7.51 (m, 4H), 7.38 (t, J=7.5 Hz, 2H),7.32-7.25 (m, 2H), 7.23 (t, J=5.8 Hz, 1H), 5.01 (s, 1H), 4.25 (d, J=6.9Hz, 2H), 4.15 (t, J=6.9 Hz, 1H), 2.95 (d, J=6.4 Hz, 2H), 2.04-1.93 (m,2H), 1.39 (d, J=16.0 Hz, 2H), 1.25 (d, J=31.9 Hz, 2H). MS m/z 485[M+H]⁺.

General procedure was followed to afford (S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-phenyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate (26)(0.092 g, 0.175 mmol, 60.5% yield) as white solid. 1H NMR (400 MHz,DMSO-d6) δ 8.69 (d, J=7.8 Hz, 1H), 7.96-7.89 (m, 2H), 7.86 (d, J=7.5 Hz,2H), 7.66 (d, J=7.5 Hz, 2H), 7.59-7.47 (m, 3H), 7.39 (t, J=7.4 Hz, 2H),7.30 (tdd, J=7.4, 1.2, 0.6 Hz, 2H), 7.26 (d, J=5.8 Hz, 1H), 5.18 (td,J=8.6, 5.8 Hz, 1H), 4.27 (d, J=7.2 Hz, 2H), 4.18 (t, J=6.8 Hz, 1H), 2.97(q, J=6.3 Hz, 2H), 2.02-1.94 (m, 1H), 1.88 (s, 4H), 1.41 (s, 2H), 1.35(s, 2H). MS m/z 527 [M+H]⁺.

ii. (S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-methyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate (27)

To a stirred solution of (S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-methyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate (0.147g, 0.281 mmol) in DCM (5 ml) was added TFA (0.433 ml, 5.63 mmol) underinert atmosphere and the reaction mixture was stirred at rt for 2 h.Solvents were removed in vacuo and obtained residue was dissolved inmethylene chloride and evaporated once again to afford a residue whichwas used in next step without further purification. This residue wasdissolved in DCM (2 ml) and to this solution was added ACETIC ANHYDRIDE(0.027 ml, 0.284 mmol) followed by DIPEA (0.087 ml, 0.497 mmol) and thereaction mixture was stirred at rt for overnight. TLC showed consumptionof starting material. Solvents were removed in vacuo and obtained solidwas purified to obtain (S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-methyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate (27)(0.047 g, 0.101 mmol) as a white solid (36% yield over two steps). 1HNMR (400 MHz, Chloroform-d) δ 7.76 (dt, J=7.6, 1.0 Hz, 2H), 7.58 (dt,J=7.5, 1.0 Hz, 2H), 7.35 (dtdd, J=36.7, 7.5, 1.2, 0.7 Hz, 4H), 6.59 (d,J=8.0 Hz, 1H), 5.43-5.32 (m, 1H), 4.93 (s, 1H), 4.46-4.35 (m, 2H), 4.20(t, J=6.9 Hz, 1H), 3.48 (s, 1H), 3.20 (dq, J=13.8, 6.9 Hz, 2H), 2.73 (s,3H), 2.09 (dq, J=14.0, 7.4 Hz, 1H), 2.00 (s, 3H), 1.56 (dp, J=14.1, 6.9Hz, 2H), 1.43 (q, J=7.9 Hz, 2H). MS m/z 465 [M+H]⁺.

iii. S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate(28)

To a stirred solution of(S)-(9H-fluoren-9-yl)methyl tert-butyl(1-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)dicarbamate(0.17 g, 0.310 mmol) in DCM (5 ml) was added TRIFLUOROACETIC ACID (0.597ml, 7.75 mmol) under inert atmosphere and the reaction mixture wasstirred at rt for 2 h. Solvents were removed in vacuo and the obtainedresidue was dissolved in DCM and co-evaporated twice, dried under vacuumand used in next step without further purification. MS m/z 449[[(M-Boc)+H]⁺. General procedure was followed to afford(S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-cyclopropyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate(28) (0.099 g, 0.202 mmol, 53.2% yield) as white fluffy solid. 1H NMR(400 MHz, DMSO-d6) δ 8.56 (d, J=7.9 Hz, 1H), 7.87 (d, J=7.5 Hz, 2H),7.66 (d, J=7.3 Hz, 2H), 7.39 (t, J=7.4 Hz, 2H), 7.31 (td, J=7.5, 1.2 Hz,2H), 7.25 (t, J=5.7 Hz, 1H), 5.06 (td, J=8.6, 5.8 Hz, 1H), 4.27 (d,J=6.9 Hz, 2H), 4.18 (t, J=6.9 Hz, 1H), 2.94 (q, J=6.5 Hz, 2H), 2.46-2.35(m, 1H), 1.87 (d, J=13.2 Hz, 1H), 1.83 (s, 3H), 1.74-1.77 (m, 1H), 1.39(q, J=6.7, 6.1 Hz, 2H), 1.30 (s, 1H), 1.20-1.10 (m, 3H), 0.98-0.91 (m,2H). MS m/z 491 [M+H]⁺.

d. General Procedure for the Preparation of Amino Thiadiazole Analogs

i. (S)—N-(5-amino-1-(5-methyl-1,3,4-thiadiazol-2-yl)pentyl)acetamide(29)

To a stirred solution of (S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-methyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate (0.047g, 0.101 mmol) in DMF (1.775 ml) was added piperidine (0.030 ml, 0.304mmol) and the reaction mixture was stirred at rt for 2 h. Solvents wereremoved in vacuo and obtained white solid was washed with diethyl etherto obtain(S)—N-(5-amino-1-(5-methyl-1,3,4-thiadiazol-2-yl)pentyl)acetamide (29)as a white solid. ¹H NMR (400 MHz, Methanol-d₄) δ 5.25 (ddd, J=19.1,9.0, 5.8 Hz, 1H), 2.73 (s, 3H), 2.70 (d, J=7.1 Hz, 2H), 2.07 (ddt,J=13.7, 9.3, 6.1 Hz, 1H), 1.98 (d, J=7.8 Hz, 3H), 1.96-1.81 (m, 1H),1.64-1.31 (m, 4H).

ii. (S)—N-(5-amino-1-(5-phenyl-1,3,4-thiadiazol-2-yl)pentyl)acetamide(35)

To a stirred solution of (S)-(9H-fluoren-9-yl)methyl(5-acetamido-5-(5-phenyl-1,3,4-thiadiazol-2-yl)pentyl)carbamate (26)(0.05 g, 0.095 mmol) in DMF (1.666 ml) was added piperidine (0.028 ml,0.285 mmol) under inert atmosphere and the reaction mixture was stirredfor 2 h. Solvents were removed in vacuo and obtained solid was washedwith diethyl ether twice and was purified by prep HPLC usingAcetonitrile/water and 0.05% TFA as additive to afford(S)—N-(5-amino-1-(5-phenyl-1,3,4-thiadiazol-2-yl)pentyl)acetamide (35)(0.013 g, 0.043 mmol, 45.0% yield) as a white solid. HRMS: calculatedfor C15H20N4OS [M+H]⁺: 304.1358, found 304.1359 1H NMR (400 MHz,DMSO-d6) δ 8.73 (d, J=7.9 Hz, 1H), 7.98-7.88 (m, 2H), 7.61-7.48 (m, 5H),5.21 (td, J=8.6, 5.8 Hz, 1H), 2.82-2.73 (m, 2H), 2.02 (ddd, J=14.7, 8.8,4.5 Hz, 1H), 1.89 (s, 4H), 1.56 (p, J=7.5 Hz, 2H), 1.42 (dp, J=15.8, 7.7Hz, 2H). HPLC: 99.3% (R_(T))-7.12 min.

5. General Synthesis of Thiadiazoles (Route II)

a. Starting Materials

Acid hydrazides were either commercially available or synthesized asshown in Scheme 14A and Scheme 14B below.

Amino acids were commercially available. If purchased as theFmoc-protected amine, deprotection was performed after the final stepshown above to get the final compounds. In other cases, the finalcompound was yielded by Step 4. Examples of starting materials includeN6-(((9H-fluoren-9-yl)methoxy)carbonyl)-N2-(tert-butoxycarbonyl)-L-lysine,(S)-5-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)pentanoicacid,(S)-3-(4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)phenyl)-2-((tert-butoxycarbonyl)amino)propanoicacid,(S)-3-(4-(((((9H-fluoren-9-yl)methoxy)carbonyl)amino)methyl)phenyl)-2-((tert-butoxycarbonyl)amino)propanoicacid, (S)-2-((tert-butoxycarbonyl)amino)-3-(4-cyanophenyl)propanoicacid, (S)-2-((tert-butoxycarbonyl)amino)-3-(4-fluorophenyl)propanoicacid, and (tert-butoxycarbonyl)-L-phenylalanine.

b. General Procedure for the Preparation of Hydrazines (3)

To a mixture of the corresponding amino acid (1) in acetonitrile wasadded corresponding acid hydrazide (2, 1.1 eq.) followed by DIPEA (3eq.) and HATU (1.2 eq.) and the reaction mixture was stirred overnightat rt. In some cases, the solid crashed out and was filtered and driedto afford the product. In other cases, the solvent was removed and theobtained residue was purified thorough MPLC to afford the product (3).

c. General Procedure for the Preparation of Thiadiazoles (4)

To a stirred mixture of intermediate-3 in either THF or toluene in asealed tube was added Lawesson's reagent (1.2 eq.) and the reactionmixture was heated for 3-4 h. Solvent was removed and the obtainedresidue was purified through MPLC to afford the desired compound (4).

d. General Procedure for the Preparation of Amines (5)

To a stirred solution or mixture of compound (4) in methylene chloridewas added trifluoroacetic acid (20 eq.) under inert atmosphere and thereaction mixture was stirred at rt for 2 h. Solvent was removed undervacuum and obtained residue was dissolved in methylene chloride andevaporated again under vacuum and dried at high vacuum. Obtained residuewas used in next step without further purification.

e. General Procedure for the Preparation of Amide (6)

To a stirred solution of compound 5 in methylene chloride was addedDIPEA (3 eq.) followed by acetic anhydride (1.2 eq.) and the reactionmixture was stirred at rt overnight. In some cases, the product crashedout and was filtered and dried to afford compound (6). In other cases,the solvent was evaporated and the obtained residue was purified throughMPLC to afford compound (6).

f. General Procedure for the Preparation of Deprotected Analogs

To a solution of compound (6) in DMF was added piperidine (3 eq.) andthe reaction mixture was stirred at rt for 2 h under inert atmosphere.Solvent was removed under high vacuum and in some cases, the obtainedresidue was washed with diethyl ether to afford the compound. In othercases, the residue was subjected to preparatory HPLC using 0.1% TFA inacetonitrile and 0.1% TFA in water as the solvent system.

i.N-(2-(4-Aminophenyl)-1-(5-cyclohexyl-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39137)

¹H NMR (400 MHz, Chloroform-d) δ 6.91-6.84 (m, 2H), 6.60-6.56 (m, 2H),6.41 (s, 1H), 5.57 (td, J=7.9, 6.3 Hz, 1H), 3.25 (dd, J=13.8, 6.3 Hz,1H), 3.13-3.05 (m, 2H), 2.09 (d, J=12.2 Hz, 2H), 1.99 (s, 3H), 1.86-1.79(m, 3H), 1.78-1.69 (m, 1H), 1.53-1.27 (m, 6H). HRMS (ESI): m/z [M+H]+calcd for C₁₈H₂₅N₄OS: 345.17436; found: 345.17383.

ii. N-(4-Amino-1-(5-cyclohexyl-1,3,4-thiadiazol-2-yl)butyl)acetamide(39138)

¹H NMR (400 MHz, Methanol-d₄) δ 5.29 (dd, J=9.1, 5.7 Hz, 1H), 3.13 (tt,J=11.3, 3.6 Hz, 1H), 2.74 (dd, J=7.7, 6.9 Hz, 2H), 2.18-2.03 (m, 3H),2.00 (s, 3H), 1.98-1.90 (m, 1H), 1.90-1.81 (m, 2H), 1.76 (dtt, J=12.8,3.3, 1.5 Hz, 1H), 1.71-1.58 (m, 2H), 1.58-1.41 (m, 4H), 1.41-1.26 (m,1H). HRMS (ESI): m/z [M+H]+ calcd for C₁₄H₂₅N₄OS: 297.1749; found:297.1744.

iii. N-(5-Amino-1-(5-cyclohexyl-1,3,4-thiadiazol-2-yl)pentyl)acetamide(39139)

¹H NMR (400 MHz, Methanol-d₄) δ 5.28 (dd, J=9.1, 5.7 Hz, 1H), 3.13 (tt,J=11.3, 3.5 Hz, 1H), 2.70 (t, J=7.1 Hz, 2H), 2.15-2.07 (m, 2H),2.07-2.01 (m, 1H), 1.99 (s, 3H), 1.97-1.90 (m, 1H), 1.90-1.82 (m, 2H),1.76 (dtt, J=12.7, 3.3, 1.4 Hz, 1H), 1.61-1.56 (m, 2H), 1.56-1.52 (m,2H), 1.52-1.47 (m, 2H), 1.47-1.41 (m, 2H), 1.40-1.25 (m, 1H). HRMS(ESI): m/z [M+H]+ calcd for C₁₅H₂₇N₄OS: 311.1906; found: 311.1900.

iv.N-(5-Amino-1-(5-(2,4-difluorophenyl)-1,3,4-thiadiazol-2-yl)pentyl)acetamide(39425)

¹H NMR (400 MHz, Methanol-d₄) δ 8.31 (ddd, J=9.0, 8.2, 6.3 Hz, 1H),7.30-7.15 (m, 2H), 5.42 (dd, J=8.8, 6.0 Hz, 1H), 2.95 (t, J=7.9 Hz, 2H),2.22 (ddt, J=13.7, 9.2, 6.4 Hz, 1H), 2.10-2.03 (m, 1H), 2.03 (s, 3H),1.81-1.68 (m, 2H), 1.67-1.45 (m, 2H). HRMS (ESI): m/z [M+H]+ calcd forC₁₅H₁₉F₂N₄OS: 341.1248; found: 341.1243.

v.N-(5-Amino-1-(5-(4-fluorophenyl)-1,3,4-thiadiazol-2-yl)pentyl)acetamide(39261)

¹H NMR (400 MHz, Chloroform-d) δ 7.91-7.85 (m, 2H), 7.17-7.11 (m, 2H),5.42 (td, J=8.1, 5.8 Hz, 1H), 3.25 (s, 5H), 2.84 (t, J=6.6 Hz, 2H),2.22-2.11 (m, 1H), 2.05 (s, 3H), 1.62 (dtd, J=29.6, 14.8, 8.4 Hz, 4H).HRMS (ESI): m/z [M+H]+ calcd for C₁₅H₂₀FN₄OS: 323.13364; found:323.13413.

vi.N-(2-(4-(aminomethyl)phenyl)-1-(5-cyclohexyl-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39263)

¹H NMR (400 MHz, Chloroform-d) δ 8.30 (d, J=8.2 Hz, 1H), 8.20 (s, 1H),7.20 (d, J=7.7 Hz, 2H), 7.07 (d, J=7.7 Hz, 2H), 5.54 (q, J=7.8 Hz, 1H),3.80 (s, 2H), 3.27 (d, J=13.0 Hz, 1H), 3.19-2.98 (m, 2H), 2.06 (d,J=11.4 Hz, 2H), 1.81 (s, 5H), 1.72 (d, J=12.9 Hz, 1H), 1.52-1.30 (m,4H), 1.24 (q, J=9.7, 7.4 Hz, 1H). HRMS (ESI): m/z [M+H]+ calcd forC₁₉H₂₇N₄OS: 359.19001; found: 359.18994.

vii.N,N′-(1-(5-(4-fluorophenyl)-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)diacetamide(39264)

Title compound was synthesized from 39261:(S)—N-(5-amino-1-(5-(4-fluorophenyl)-1,3,4-thiadiazol-2-yl)pentyl)acetamide.¹H NMR (400 MHz, Chloroform-d) δ 7.97-7.86 (m, 2H), 7.21-7.10 (m, 2H),6.83 (d, J=7.7 Hz, 1H), 5.75 (s, 1H), 5.39 (td, J=8.2, 5.2 Hz, 1H), 3.38(dq, J=13.8, 6.8 Hz, 1H), 3.25-3.12 (m, 1H), 2.18 (td, J=14.1, 6.1 Hz,1H), 2.07 (s, 4H), 1.99 (s, 3H), 1.62-1.52 (m, 2H), 1.52-1.42 (m, 2H).HRMS (ESI): m/z [M+H]+ calcd for C₁₇H₂₂FN₄O₂S: 365.1442; found:365.14511.

viii.N-(2-(4-aminophenyl)-1-(5-(pyridin-2-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39647)

¹H NMR (400 MHz, Methanol-d₄) δ 8.64 (ddd, J=4.9, 1.7, 1.0 Hz, 1H), 8.27(dt, J=7.9, 1.1 Hz, 1H), 7.98 (td, J=7.8, 1.7 Hz, 1H), 7.52 (ddd, J=7.6,4.9, 1.2 Hz, 1H), 7.44-7.38 (m, 2H), 7.26-7.20 (m, 2H), 5.66 (dd, J=9.1,6.4 Hz, 1H), 3.52 (dd, J=13.9, 6.4 Hz, 1H), 3.30-3.26 (m, 1H), 1.93 (s,3H). HRMS (ESI): m/z [M+H]+ calcd for C₁₇H₁₈N₅OS: 340.12266; found:340.12307.

ix.N-(2-(4-aminophenyl)-1-(5-(thiazol-5-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39648)

¹H NMR (400 MHz, Methanol-d₄) δ 9.17 (d, J=0.7 Hz, 1H), 8.45 (d, J=0.7Hz, 1H), 7.36 (d, J=8.5 Hz, 2H), 7.15 (d, J=8.4 Hz, 2H), 5.62 (dd,J=9.2, 6.4 Hz, 1H), 3.54-3.47 (m, 1H), 3.29-3.23 (m, 1H), 1.92 (s, 3H).HRMS (ESI): m/z [M+H]+ calcd for C₁₅H₁₆N₅OS₂: 346.07908; found:346.07923.

x.N-(2-(4-aminophenyl)-1-(5-(thiazol-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39577)

¹H NMR (400 MHz, DMSO-d₆) δ 9.28 (d, J=1.9 Hz, 1H), 8.75 (d, J=8.1 Hz,1H), 8.53 (d, J=1.9 Hz, 1H), 6.90 (d, J=8.4 Hz, 2H), 6.46 (d, J=8.3 Hz,2H), 5.33 (td, J=8.7, 6.3 Hz, 1H), 4.90 (s, 2H), 3.12 (dd, J=13.9, 6.3Hz, 1H), 3.00 (dd, J=13.9, 9.0 Hz, 1H), 1.82 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₁₅H₁₆N₅OS₂: 346.07908; found: 346.07960.

xi.N-(2-(4-aminophenyl)-1-(5-(1-(4-chlorophenyl)cyclopropyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39649)

¹H NMR (400 MHz, Methanol-d₄) δ 7.45-7.35 (m, 4H), 6.95-6.89 (m, 2H),6.65-6.60 (m, 2H), 5.35 (dd, J=9.0, 6.3 Hz, 1H), 3.17 (dd, J=14.0, 6.4Hz, 1H), 3.01 (dd, J=13.9, 9.1 Hz, 1H), 1.86 (s, 3H), 1.77-1.73 (m, 2H),1.54-1.50 (m, 2H). HRMS (ESI): m/z [M+H]+ calcd for C₂₁H₂₂C1N₄OS:413.11974; found: 413.12002

xii.N-(2-(4-(aminomethyl)phenyl)-1-(5-(pyridin-2-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39650)

¹H NMR (400 MHz, Methanol-d₄) δ 8.64 (ddd, J=4.9, 1.7, 1.0 Hz, 1H), 8.26(dt, J=8.0, 1.1 Hz, 1H), 8.01-7.95 (m, 1H), 7.52 (ddd, J=7.6, 4.9, 1.2Hz, 1H), 7.39 (s, 4H), 5.70-5.61 (m, 1H), 4.08 (s, 2H), 3.52 (dd,J=13.8, 6.5 Hz, 1H), 3.30-3.26 (m, 1H), 1.93 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₁₈H₂₀N₅OS: 354.13831; found: 354.13852.

xiii.N-(2-(4-(aminomethyl)phenyl)-1-(5-(pyridin-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39651)

¹H NMR (400 MHz, Methanol-d₄) δ 9.11 (d, J=2.2 Hz, 1H), 8.71 (dd, J=5.1,1.6 Hz, 1H), 8.39 (ddd, J=8.0, 2.3, 1.6 Hz, 1H), 7.62 (ddd, J=8.0, 4.9,0.9 Hz, 1H), 7.40 (s, 4H), 5.67 (dd, J=9.2, 6.3 Hz, 1H), 4.08 (s, 2H),3.56 (dd, J=13.9, 6.3 Hz, 1H), 3.15-3.11 (m, 1H), 1.91 (s, 3H). HRMS(ESI): m/z [M+H]+ calcd for C₁₈H₂₀N₅OS: 354.13831; found: 354.13830.

xiv.N-(4-(2-acetamido-2-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)benzyl)acetamide(39998)

Title compound was synthesized from 39245:(S)—N-(2-(4-(aminomethyl)phenyl)-1-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide.¹H NMR (400 MHz, Methanol-d₄) δ 8.73-8.71 (m, 2H), 7.97-7.94 (m, 2H),7.25 (q, J=8.1 Hz, 4H), 5.64 (dd, J=9.2, 6.2 Hz, 1H), 4.32 (s, 2H), 3.49(dd, J=13.9, 6.2 Hz, 1H), 3.29-3.21 (m, 1H), 1.97 (s, 3H), 1.92 (s, 3H).HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₂₂N₅O₂S: 396.14887; found:396.14819.

xv.N,N′-(1-(5-cyclohexyl-1,3,4-thiadiazol-2-yl)pentane-1,5-diyl)diacetamide(40004)

Title compound was synthesized) from 39263;(S)—N-(2-(4-(aminomethyl)phenyl)-1-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide.¹H NMR (400 MHz, Chloroform-d) δ 6.68 (d, J=8.0 Hz, 1H), 5.77 (s, 1H),5.37 (q, J=7.9 Hz, 1H), 3.34 (dd, J=13.5, 6.8 Hz, 1H), 3.23-3.06 (m,2H), 2.13 (d, J=12.8 Hz, 3H), 2.05 (d, J=1.4 Hz, 3H), 1.99 (d, J=1.3 Hz,3H), 1.75 (d, J=13.9 Hz, 2H), 1.54 (dd, J=15.2, 9.3 Hz, 4H), 1.44 (dd,J=16.4, 9.6 Hz, 6H), 1.31 (d, J=13.2 Hz, 1H). HRMS (ESI): m/z [M+H]+calcd for C₁₇H₂₉N₄O₂S: 353.20057; found: 353.19989.

xvi.N-(2-(4-aminophenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39999)

¹H NMR (400 MHz, DMSO-d₆) δ 8.78 (d, J=8.0 Hz, 1H), 7.97 (ddd, J=7.7,1.7, 1.0 Hz, 1H), 7.94 (s, 1H), 7.69 (ddd, J=8.2, 7.7, 0.5 Hz, 1H), 7.59(ddt, J=8.3, 2.3, 1.1 Hz, 1H), 6.95-6.89 (m, 2H), 6.49-6.43 (m, 2H),5.33 (ddd, J=9.2, 8.1, 6.1 Hz, 1H), 4.92 (s, 2H), 3.16 (dd, J=13.9, 6.0Hz, 1H), 3.01 (dd, J=13.9, 9.2 Hz, 1H), 1.82 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₁₉H₈F₃N₄O₂S: 423.10971; found: 423.10903.

xvii.N-(2-(4-fluorophenyl)-1-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40050)

¹H NMR (400 MHz, DMSO-d₆) δ 8.88 (d, J=8.1 Hz, 1H), 8.79-8.72 (m, 2H),7.96-7.88 (m, 2H), 7.35 (dd, J=8.5, 5.7 Hz, 2H), 7.12 (t, J=8.9 Hz, 2H),5.49 (ddd, J=9.9, 8.2, 5.6 Hz, 1H), 3.43-3.38 (m, 1H), 3.19 (dd, J=13.9,9.8 Hz, 1H), 1.81 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd for C₁₇H₁₆FN₄OS:343.10234; found: 343.10210.

xviii.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-fluorophenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40051)

¹H NMR (400 MHz, Methanol-d₄) δ 8.03-7.96 (m, 2H), 7.39 (s, 4H),7.32-7.25 (m, 2H), 5.64 (dd, J=9.2, 6.4 Hz, 1H), 4.07 (s, 2H), 3.53 (dd,J=13.9, 6.4 Hz, 1H), 3.16-3.12 (m, 1H), 1.92 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₁₉H₂₀FN₄OS: 371.13364; found: 371.13347.

xix.N-(2-(4-(aminomethyl)phenyl)-1-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39245)

¹H NMR (400 MHz, Methanol-d₄) δ 8.74-8.71 (m, 2H), 8.54 (s, 1H),7.99-7.93 (m, 2H), 7.40 (s, 4H), 5.68 (dd, J=9.3, 6.2 Hz, 1H), 4.07 (s,2H), 3.56 (dd, J=13.9, 6.2 Hz, 1H), 1.92 (s, 3H). HRMS (ESI): m/z [M+H]+calcd for C₁₈H₂₀N₅OS: 354.13831; found: 354.13747.

xx.N-(2-(3-(aminomethyl)phenyl)-1-(5-phenyl-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40355)

¹H NMR (400 MHz, DMSO-d₆) δ 8.89 (d, J=8.1 Hz, 1H), 8.38 (s, 2H),7.97-7.92 (m, 2H), 7.58-7.52 (m, 3H), 7.34 (s, 1H), 7.27-7.17 (m, 3H),5.48 (ddd, J=9.5, 8.4, 5.8 Hz, 1H), 3.79 (s, 2H), 3.39 (d, J=5.6 Hz,1H), 3.22-3.19 (m, 1H), 1.82 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd forC₁₉H₂₁N₄OS: 353.14306; found: 353.14292.

xxi.N-(2-(3-(aminomethyl)phenyl)-1-(5-(pyridin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40356)

¹H NMR (400 MHz, DMSO-d₆) δ 8.94 (d, J=8.0 Hz, 1H), 8.78-8.71 (m, 2H),8.33 (s, 1H), 7.93-7.88 (m, 2H), 7.36 (s, 1H), 7.29-7.19 (m, 3H),5.55-5.45 (m, 1H), 3.83 (s, 2H), 3.36 (d, J=5.7 Hz, 1H), 3.23-3.19 (m,1H), 1.82 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd for C₁₈H₂₀N₅OS:354.13831; found: 354.13765.

xxii.N-(2-(3-(aminomethyl)phenyl)-1-(5-(4-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(SRI-40357)

¹H NMR (400 MHz, Methanol-d₄) δ 8.55 (s, 1H), 8.11-8.02 (m, 2H),7.49-7.40 (m, 3H), 7.40-7.26 (m, 3H), 5.68 (dd, J=9.2, 6.3 Hz, 1H), 4.05(s, 2H), 3.54 (dd, J=13.9, 6.3 Hz, 1H), 1.93 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₂₀H₂₀F₃N₄O₂S: 437.12536; found: 437.12525.

xxiii.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(SRI-40000)

¹H NMR (400 MHz, DMSO-d₆) δ 8.89 (d, J=8.1 Hz, 1H), 8.37 (s, 1H), 7.98(ddd, J=7.7, 1.7, 1.0 Hz, 1H), 7.94 (dd, J=2.4, 1.3 Hz, 1H), 7.70 (ddd,J=8.2, 7.7, 0.5 Hz, 1H), 7.59 (ddt, J=8.2, 2.3, 1.1 Hz, 1H), 7.31 (d,J=1.0 Hz, 4H), 5.48 (ddd, J=9.5, 8.1, 5.6 Hz, 1H), 3.84 (s, 2H), 3.39(dd, J=13.9, 5.6 Hz, 1H), 3.20 (dd, J=13.9, 9.6 Hz, 1H), 1.81 (s, 3H).HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₂₀F₃N₄O₂S: 437.12536; found:437.12497.

xxiv.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,5-difluorophenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40651)

¹H NMR (400 MHz, DMSO-d6) δ 8.90 (d, J=8.1 Hz, 1H), 7.80-7.64 (m, 2H),7.50 (tt, J=9.2, 2.3 Hz, 1H), 7.28 (d, J=1.9 Hz, 4H), 5.47 (ddd, J=9.6,8.0, 5.6 Hz, 1H), 3.78 (s, 2H), 3.73 (d, J=4.0 Hz, 1H), 3.38 (dd,J=13.9, 5.6 Hz, 2H), 3.19 (dd, J=13.8, 9.6 Hz, 1H), 1.81 (s, 3H). HRMS(ESI): m/z [M+H]+ calcd for C₁₉H₁₉F₂N₄OS: 389.12421; found: 389.12411.

xxv.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-fluoro-3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40652)

¹H NMR (400 MHz, DMSO-d₆) δ 8.88 (d, J=8.1 Hz, 1H), 8.16 (d, J=7.3 Hz,1H), 8.06 (ddd, J=8.7, 4.4, 2.3 Hz, 1H), 7.72 (dd, J=10.1, 8.7 Hz, 1H),7.28 (d, J=1.5 Hz, 4H), 5.46 (ddd, J=9.3, 8.1, 5.8 Hz, 1H), 3.77 (s,2H), 3.38 (dd, J=13.9, 5.7 Hz, 2H), 3.19 (dd, J=13.8, 9.6 Hz, 2H), 1.81(s, 3H). HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₁₉F₄N₄O₂S: 455.11594;found: 455.11580.

xxvi.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,5-bis(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40653)

¹H NMR (400 MHz, DMSO-d₆) δ 8.95 (d, J=8.0 Hz, 1H), 8.58 (t, J=1.1 Hz,2H), 8.35 (s, 1H), 7.34 (s, 4H), 5.51 (ddd, J=9.2, 8.2, 5.4 Hz, 1H),3.89 (s, 2H), 3.43 (dd, J=13.9, 5.5 Hz, 2H), 3.22 (dd, J=13.9, 9.7 Hz,2H), 1.82 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd for C₂₁H₁₉F₆N₄OS:489.11783; found: 489.11754.

xxvii.N-(2-(4-cyano-3-fluorophenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(41176)

¹H NMR (400 MHz, Methanol-d₄) δ 7.99-7.84 (m, 2H), 7.75-7.59 (m, 2H),7.49 (dddd, J=8.3, 3.3, 2.0, 1.0 Hz, 1H), 7.41-7.29 (m, 2H), 5.74 (dd,J=9.7, 5.7 Hz, 1H), 3.66 (dd, J=14.0, 5.7 Hz, 1H), 3.38 (dd, J=14.0, 9.7Hz, 1H), 1.93 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₁₅F₄N₄O₂S:451.08464; found: 451.08474.

xxviii.N-(2-(4-(aminomethyl)phenyl)-1-(5-(m-tolyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(41261)

¹H NMR (400 MHz, Methanol-d₄) δ 7.76 (tt, J=1.6, 0.8 Hz, 1H), 7.74-7.68(m, 1H), 7.43-7.35 (m, 6H), 5.64 (dd, J=9.2, 6.3 Hz, 1H), 4.09 (s, 2H),3.52 (dd, J=13.8, 6.3 Hz, 1H), 3.30-3.25 (m, 1H), 2.42 (s, 3H), 1.92 (s,3H). HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₂₃N₄OS: 367.15871; found:367.15922.

xxix.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-chloro-5-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42551)

¹H NMR (400 MHz, Methanol-d₄) δ 8.02-7.95 (m, 1H), 7.84 (tt, J=2.3, 1.0Hz, 1H), 7.58 (tt, J=1.9, 1.0 Hz, 1H), 7.39 (s, 4H), 5.66 (dd, J=9.1,6.3 Hz, 1H), 4.08 (s, 2H), 3.55 (dd, J=13.9, 6.3 Hz, 1H), 1.91 (s, 3H).HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₁₉C1F₃N₄O₂S: 471.0689; found:471.0689. HPLC: 99.1% (% of AUC).

xxx.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-chlorophenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42552)

¹H NMR (400 MHz, DMSO-d₆) δ 7.17 (t, J=1.8 Hz, 1H), 7.04 (dt, J=7.5, 1.5Hz, 1H), 6.79-6.64 (m, 2H), 6.58 (s, 4H), 4.84 (ddd, J=9.0, 6.4, 2.9 Hz,1H), 3.26 (s, 2H), 2.73 (dd, J=13.9, 6.5 Hz, 1H), 1.10 (s, 3H). HRMS(ESI): m/z [M+H]+ calcd for C₁₉H₂₀C1N₄OS: 387.1046; found: 387.1038.HPLC: 99.9% (% of AUC).

xxxi.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40348)

¹H NMR (400 MHz, Methanol-d₄) δ 8.10-8.01 (m, 2H), 7.50-7.41 (m, 2H),7.37 (s, 4H), 5.64 (dd, J=9.2, 6.3 Hz, 1H), 4.02 (s, 2H), 3.53 (dd,J=13.9, 6.4 Hz, 1H), 3.27-3.20 (m, 1H), 1.91 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₂₀H₂₀F₃N₄O₂S: 437.1259; found: 437.1251. HPLC: 95.7%(% of AUC).

xxxii.N-(2-(4-cyanophenyl)-1-(5-(4-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40318)

¹H NMR (400 MHz, DMSO-d₆) δ 8.86 (d, J=8.3 Hz, 1H), 8.15-8.03 (m, 2H),7.81-7.73 (m, 2H), 7.58-7.49 (m, 4H), 5.55 (ddd, J=9.9, 8.3, 5.3 Hz,1H), 3.51 (dd, J=13.8, 5.3 Hz, 2H), 1.78 (s, 3H). HRMS (ESI): m/z [M+H]+calcd for C₂₀H₁₆F₃N₄O₂S: 433.0946; found: 433.0937. HPLC: 97.5% (% ofAUC).

xxxiii. N-(2-phenyl-1-(5-phenyl-1,3,4-thiadiazol-2-yl)ethyl)acetamide(41587)

¹H NMR (400 MHz, DMSO-d₆) δ 8.82 (d, J=8.1 Hz, 1H), 7.99-7.88 (m, 2H),7.61-7.45 (m, 3H), 7.36-7.27 (m, 4H), 7.27-7.15 (m, 2H), 5.46 (ddd,J=9.6, 8.2, 5.6 Hz, 1H), 3.38 (dd, J=13.8, 5.6 Hz, 1H), 3.18 (dd,J=13.8, 9.6 Hz, 1H), 1.79 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd forC₁₈H₁₈N₃OS: 324.1171; found: 324.1161. HPLC: 98.3% (% of AUC).

xxxiv.N-(2-(4-(aminomethyl)phenyl)-1-(5-(quinolin-4-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(41242)

¹H NMR (400 MHz, Methanol-d₄) δ 9.01 (dd, J=4.6, 1.3 Hz, 1H), 8.68 (ddd,J=8.6, 1.4, 0.7 Hz, 1H), 8.18 (ddd, J=8.6, 1.4, 0.7 Hz, 1H), 7.91 (ddd,J=8.4, 6.9, 1.4 Hz, 1H), 7.86 (dd, J=4.6, 1.3 Hz, 1H), 7.76 (ddt, J=8.4,7.3, 1.4 Hz, 1H), 7.48-7.38 (m, 4H), 5.75 (dd, J=9.3, 6.1 Hz, 1H), 4.09(s, 2H), 3.62 (dd, J=13.9, 6.1 Hz, 1H), 3.42-3.32 (m, 1H), 1.93 (s, 3H).HRMS (ESI): m/z [M+H]+ calcd for C₂₂H₂₂N₅OS: 404.1545; found: 404.1534.HPLC: 99% (% of AUC).

xxxv.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-methoxy-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42330)

¹H NMR (400 MHz, DMSO-d₆) δ 8.89 (d, J=8.1 Hz, 1H), 8.09 (s, 2H), 7.80(td, J=1.5, 0.7 Hz, 1H), 7.73 (s, 1H), 7.45 (ddd, J=2.3, 1.6, 0.7 Hz,1H), 7.36 (d, J=1.1 Hz, 4H), 5.49 (ddd, J=9.7, 8.1, 5.6 Hz, 1H), 3.99(q, J=5.8 Hz, 3H), 3.92 (s, 4H), 3.42 (dd, J=13.9, 5.6 Hz, 2H), 3.20(dd, J=13.9, 9.7 Hz, 1H), 1.80 (s, 3H). HRMS (ESI): m/z [M+H]+: 451.14;HPLC: 100% (% of AUC).

xxxvi.N-(2-(3-(aminomethyl)phenyl)-1-(5-(pyridin-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40339)

¹H NMR (400 MHz, Methanol-d₄) δ 8.10-8.01 (m, 2H), 7.45 (ddt, J=7.8,2.0, 1.0 Hz, 2H), 7.37 (s, 4H), 5.64 (dd, J=9.2, 6.3 Hz, 1H), 4.02 (s,2H), 3.53 (dd, J=13.9, 6.3 Hz, 1H), 3.29-3.18 (m, 1H), 1.91 (s, 3H).HRMS (ESI): m/z [M+H]+ calcd for C₁₈H₂₀N₅OS: 353.1310; found: 354.1389.HPLC: 95.3% (% of AUC).

xxxvii.N-(2-(4-aminophenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39426)

¹H NMR (400 MHz, DMSO-d₆): δ ¹H NMR (400 MHz, DMSO-d₆) δ 8.73 (d, J=8.1Hz, 1H), 8.25 (ddd, J=7.8, 1.8, 0.5 Hz, 1H), 7.71 (ddd, J=8.4, 7.2, 1.8Hz, 1H), 7.64-7.47 (m, 2H), 6.96-6.79 (m, 2H), 6.51-6.36 (m, 2H),5.45-5.25 (m, 1H), 4.87 (s, 2H), 3.14 (dd, J=13.9, 6.1 Hz, 1H), 3.00(dd, J=13.9, 9.1 Hz, 1H), 1.80 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd forC₁₉H₁₈F₃N₄O₂S: 423.1103; found: 423.1094. HPLC: 97.2% (% of AUC).

xxxviii.N-(2-(4-cyanophenyl)-1-(5-(2-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40311)

¹H NMR (400 MHz, DMSO-d₆) δ 8.87 (d, J=8.3 Hz, 1H), 8.37-8.19 (m, 1H),7.79-7.73 (m, 2H), 7.73-7.69 (m, 1H), 7.64-7.57 (m, 2H), 7.54-7.49 (m,2H), 5.59 (ddd, J=9.9, 8.3, 5.4 Hz, 1H), 3.61-3.38 (m, 2H), 1.77 (s,3H). HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₁₆F₃N₄O₂S: 433.0946; found:433.0935. HPLC: 95.2% (% of AUC).

xxxix.N-(2-(4-(aminomethyl)phenyl)-1-(5-phenyl-1,3,4-thiadiazol-2-yl)ethyl)acetamide(40340)

¹H NMR (400 MHz, DMSO-d₆) δ ¹H NMR (400 MHz, DMSO-d₆) δ 8.86 (d, J=8.2Hz, 1H), 8.09 (s, 2H), 7.99-7.85 (m, 2H), 7.60-7.47 (m, 3H), 7.36 (s,4H), 5.48 (ddd, J=9.5, 8.1, 5.7 Hz, 1H), 3.99 (q, J=5.8 Hz, 2H),3.21-3.12 (m, 2H), 1.80 (s, 3H). HRMS (ESI): m/z [M+H]+ calcd forC₁₉H₂₁N₄OS: 353.1436; found: 353.1442. HPLC: 98.8% (% of AUC).

xl.N-(1-(5-(3-cyanophenyl)-1,3,4-thiadiazol-2-yl)-2-phenylethyl)acetamide(41670)

¹H NMR (400 MHz, DMSO-d₆) δ ¹H NMR (400 MHz, DMSO-d₆) δ 8.85 (d, J=8.1Hz, 1H), 8.18-8.10 (m, 2H), 8.04-7.96 (m, 2H), 7.34-7.24 (m, 4H),7.24-7.16 (m, 1H), 5.48 (ddd, J=9.6, 8.1, 5.5 Hz, 1H), 3.38 (dd, J=13.9,5.6 Hz, 1H), 3.19 (dd, J=13.9, 9.7 Hz, 1H), 1.79 (s, 3H). HRMS (ESI):m/z [M+H]+ calcd for C₁₉H₁₇N₄OS: 349.1123; found: 349.1117. HPLC: 98.8%(% of AUC).

xli.N-(2-(4-aminophenyl)-1-(5-(pyridin-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(39246)

¹H NMR (400 MHz, DMSO-d₆) δ 9.10 (dd, J=2.3, 0.9 Hz, 1H), 8.79-8.69 (m,2H), 8.32 (ddd, J=8.0, 2.3, 1.6 Hz, 1H), 7.57 (ddd, J=8.0, 4.8, 0.9 Hz,1H), 6.94-6.87 (m, 2H), 6.49-6.41 (m, 2H), 5.38-5.21 (m, 1H), 4.88 (s,2H), 3.17-3.08 (m, 1H), 3.02-2.89 (m, 1H), 1.81 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₁₇H₁₈N₅OS: 340.11232; found: 340.1126. HPLC: 95.1% (%of AUC).

xlii.N-(4-(2-acetamido-2-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)benzyl)acetamide(41801)

Title compound from 40000;(S)—N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide.¹H NMR (400 MHz, DMSO-d₆) δ 8.85 (d, J=8.1 Hz, 1H), 8.18-8.07 (m, 2H),8.07-7.92 (m, 2H), 7.23 (s, 4H), 5.46 (ddd, J=9.5, 8.0, 5.6 Hz, 1H),3.68 (s, 2H), 3.16 (dd, J=13.9, 9.6 Hz, 2H), 1.80 (s, 3H). HRMS (ESI):m/z [M+H]+ calcd for C₂₂H₂₂F₃N₄O₃S: 479.1365; found: 479.1363. HPLC:98.5% (% of AUC).

xliii.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-cyanophenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42321)

¹H NMR (400 MHz, DMSO-d₆) δ 8.85 (d, J=8.1 Hz, 1H), 8.18-8.08 (m, 2H),8.04-7.96 (m, 2H), 7.23 (s, 4H), 5.46 (ddd, J=9.6, 8.0, 5.7 Hz, 1H),3.68 (s, 2H), 3.16 (dd, J=13.9, 9.6 Hz, 2H), 1.80 (s, 3H). HRMS (ESI):m/z [M+H]+ calcd for C₂₀H₂₀N₅OS: 378.1389; found: 378.1381. HPLC: 90% (%of AUC).

xliv.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-methyl-3-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42612)

¹H NMR (400 MHz, Methanol-d₄) δ 8.23-8.17 (m, 1H), 8.02 (dd, J=8.1, 2.0Hz, 1H), 7.55 (ddd, J=8.0, 1.3, 0.6 Hz, 1H), 7.39 (s, 4H), 5.65 (dd,J=9.2, 6.3 Hz, 1H), 4.07 (s, 2H), 3.53 (dd, J=13.9, 6.4 Hz, 1H), 3.27(d, J=9.2 Hz, 1H), 2.55 (q, J=1.8 Hz, 3H), 1.91 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₂₁H₂₂F₃N₄OS: 435.1466; found: 435.1464. HPLC: 100% (%of AUC).

xlv.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-fluoro-3-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42613)

¹H NMR (400 MHz, Methanol-d₄) δ 8.32-8.20 (m, 2H), 7.58-7.49 (m, 1H),7.39 (s, 4H), 5.65 (dd, J=9.2, 6.3 Hz, 1H), 4.08 (s, 2H), 3.55 (dd,J=13.9, 6.3 Hz, 1H), 3.27 (d, J=9.3 Hz, 1H), 1.91 (s, 3H). HRMS (ESI):m/z [M+H]+ calcd for C₂₀H₁₉F₄N₄OS: 439.1216; found: 439.1219. HPLC: 100%(% of AUC).

6. General Procedure for the Synthesis of Thiadiazoles (Route III)

a. N-(5-amino-1-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)pentyl)acetamide(40074)

¹H NMR (400 MHz, Methanol-d₄) δ 8.81 (d, J=5.1 Hz, 2H), 8.07-8.00 (m,2H), 5.33 (dd, J=8.8, 6.0 Hz, 1H), 2.95 (t, J=7.6 Hz, 2H), 2.15 (ddt,J=13.6, 9.4, 6.2 Hz, 1H), 2.04 (s, 3H), 2.02-1.93 (m, 1H), 1.84-1.64 (m,2H), 1.64-1.47 (m, 2H). HRMS (ESI): m/z [M+H]+ calcd for C₁₄H₂₀N₅O₂:290.1617; found: 290.1608.

b. N-(2-(4-cyanophenyl)-1-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl)acetamide(41139)

¹H NMR (400 MHz, DMSO-d₆) δ ¹H NMR (400 MHz, DMSO-d₆) δ 8.72 (d, J=8.3Hz, 1H), 7.96 (dd, J=2.0, 1.3 Hz, 1H), 7.94 (d, J=1.8 Hz, 1H), 7.80-7.73(m, 2H), 7.66-7.57 (m, 3H), 7.53-7.46 (m, 2H), 5.49-5.35 (m, 1H), 3.42(dd, J=13.7, 6.0 Hz, 1H), 3.28-3.22 (m, 1H), 1.80 (s, 3H). HRMS (ESI):m/z [M+H]+ calcd for C₁₉H₁₇N₄O₂: 333.1352; found: 333.1338. HPLC: 97.7%(% of AUC).

c.N-(2-(4-(aminomethyl)phenyl)-1-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl)acetamide

¹H NMR (400 MHz, Methanol-d₄) δ 8.05-7.95 (m, 2H), 7.65-7.52 (m, 3H),7.38 (s, 4H), 5.56 (dd, J=8.7, 6.9 Hz, 1H), 4.07 (s, 2H), 3.44 (dd,J=13.8, 6.9 Hz, 1H), 3.29-3.23 (m, 1H), 1.94 (s, 3H). HRMS (ESI): m/z[M+H]+ calcd for C₁₉H₂₁N₄O₂: 337.16590; found: 337.16556.

d.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-methoxyphenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamidehydrochloride (41234)

¹H NMR (300 MHz, DMSO-d₆): δ 8.85 (d, J=7.6 Hz, 1H), 8.41 (brs, 3H),7.54 (s, 2H), 7.46 (s, 1H), 7.41-7.40 (m, 2H), 7.34-7.33 (m, 2H), 7.22(s, 1H), 5.39-5.37 (m, 1H), 3.97 (s, 2H), 3.85 (s, 3H), 3.33-3.30 (m,1H), 3.21-3.16 (m, 1H), 1.83 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd forC₂₀H₂₃N₄O₃: 367.1770; found: 367.1759; MS (MM): m/z 367.0 [M−HCl]⁺;HPLC: 92.3 (% of AUC).

e.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4-fluoro-3-(trifluoromethoxy)phenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamidehydrochloride (41322)

¹H NMR (400 MHz, DMSO-d₆): δ 8.78 (d, J=8.0 Hz, 1H), 8.12-8.06 (m, 5H),7.83-7.78 (m, 1H), 7.36-7.35 (m, 4H), 5.41-5.35 (m, 1H), 3.98 (s, 2H),3.33-3.30 (m, 1H), 3.19-3.14 (m, 1H), 1.82 (s, 3H); HRMS (ESI): m/z[M+H]+ calcd for C₂₀H₁₉F₄N₄O₃: 439.1393; found: 439.1384; MS (MM): m/z439.1 [M−HCl]⁺; HPLC: 97.4 (% of AUC).

f.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamidehydrochloride (41321)

¹H NMR (400 MHz, DMSO-d₆): δ 8.79 (d, J=8.4 Hz, 1H), 8.17 (brs, 3H),8.02 (d, J=8.0 Hz, 1H), 7.89 (s, 1H), 7.80-7.76 (m, 1H), 7.70-7.68 (m,1H), 7.39-7.33 (m, 4H), 5.42-5.36 (m, 1H), 3.98 (s, 2H), 3.33-3.30 (m,1H), 3.20-3.15 (m, 1H), 1.82 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd forC₂₀H₂₀F₃N₄O₃: 421.1488; found: 421.1481; MS (MM): m/z 421.1 [M−HCl]⁺;HPLC: 98.8 (% of AUC).

g.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-fluorophenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamidehydrochloride (41235)

¹H NMR (400 MHz, DMSO-d₆): δ 8.80 (d, J=8.0 Hz, 1H), 8.23 (brs, 3H),7.83 (d, J=7.6 Hz, 1H), 7.78-7.76 (m, 1H), 7.70-7.67 (m, 1H), 7.53-7.52(m, 1H), 7.39-7.33 (m, 4H), 5.39-5.38 (m, 1H), 3.97 (d, J=5.6 Hz, 2H),3.32-3.30 (m, 1H), 3.20-3.15 (m, 1H), 1.83 (s, 3H); HRMS (ESI): m/z[M+H]+ calcd for C₁₉H₂₀FN₄O₂: 355.1570; found: 355.1559; MS (MM): m/z355.1 [M−HCl]⁺; HPLC: 96.8 (% of AUC).

h.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethyl)phenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamidehydrochloride (41236)

¹H NMR (300 MHz, DMSO-d₆): δ 8.84 (d, J=7.8 Hz, 1H), 8.34-8.28 (m, 4H),8.22 (s, 1H), 8.05 (d, J=8.1 Hz, 1H), 7.91-7.85 (m, 1H), 7.41-7.33 (m,4H), 5.44-5.36 (m, 1H), 3.98-3.96 (m, 2H), 3.33-3.30 (m, 1H), 3.22-3.15(m, 1H), 1.83 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₂₀F₃N₄O₂:405.1538; found: 405.1540; MS (MM): m/z 405.1 [M−HCl]⁺; HPLC: 98.6 (% ofAUC).

i.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,4-difluorophenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamidehydrochloride (41237)

¹H NMR (300 MHz, DMSO-d₆): δ 8.83 (d, J=8.1 Hz, 1H), 8.38 (brs, 3H),8.06-8.01 (m, 1H), 7.83 (brs, 1H), 7.76-7.67 (m, 1H), 7.42-7.32 (m, 4H),5.41-5.33 (m, 1H), 3.97 (s, 2H), 3.31-3.29 (m, 1H), 3.21-3.14 (m, 1H),1.83 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₁₉H₁₉F₂N₄O₂: 373.1476;found: 373.1465; MS (MM): m/z 373.1[M−HCl]⁺; HPLC: 97.8 (% of AUC).

j.N-(2-(4-cyanophenyl)-1-(5-(4-fluorophenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamide(41286)

¹H NMR (300 MHz, DMSO-d₆): δ 8.73 (d, J=8.1 Hz, 1H), 8.05-8.00 (m, 2H),7.77 (d, J=7.8 Hz, 2H), 7.52-7.43 (m, 4H), 5.48-5.43 (m, 1H), 3.46-3.39(m, 1H), 3.29-3.21 (m, 1H), 1.80 (s, 3H); HRMS (ESI): m/z [M+H]+ calcdfor C₁₉H₁₆FN₄O₂: 351.1257; found: 351.1255; HPLC: 97.1 (% of AUC).

k.N-(2-(4-cyanophenyl)-1-(5-(pyridin-4-yl)-1,3,4-oxadiazol-2-yl)ethyl)acetamide(41287)

¹H NMR (300 MHz, DMSO-d₆): δ 8.84 (d, J=6.0 Hz, 2H), 8.76 (d, J=8.4 Hz,1H), 7.90 (d, J=6.0 Hz, 2H), 7.78 (d, J=8.1 Hz, 2H), 7.51 (d, J=7.8 Hz,2H), 5.47-5.46 (m, 1H), 3.47-3.41 (m, 1H), 3.27-3.23 (m, 1H), 1.81 (s,3H); HRMS (ESI): m/z [M+H]+ calcd for C₁₈H₁₆N₅O₂: 334.1304; found:334.1294; HPLC: 93.0 (% of AUC).

l.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,5-bis(trifluoromethyl)phenyl)-1,3,4-oxadiazol-2-yl)ethyl)acetamide(41934)

¹H NMR (400 MHz, Methanol-d₄) δ 8.58-8.54 (m, 2H), 8.27 (s, 1H), 7.40(s, 4H), 5.61 (dd, J=9.2, 6.5 Hz, 1H), 4.08 (s, 2H), 3.48 (dd, J=13.8,6.5 Hz, 1H), 3.29-3.25 (m, 1H), 1.94 (s, 3H). HRMS (ESI): m/z [M+H]+calcd for C₂₁H₁₉F₆N₄O₂: 473.14067; found: 473.14081.

m.N-(2-(3-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)cyclohexanecarboxamide(42461)

¹H NMR (400 MHz, DMSO-d₆) δ 8.66 (d, J=8.3 Hz, 1H), 8.16-7.86 (m, 2H),7.68 (t, J=8.0 Hz, 1H), 7.57 (d, J=8.8 Hz, 1H), 7.21 (s, 3H), 5.42 (s,1H), 3.65 (s, 2H), 3.55-3.37 (m, 2H), 2.07 (s, 1H), 1.93-1.26 (m, 5H),1.41-0.70 (m, 5H). HRMS (ESI): m/z [M+H]+ calcd for C₂₅H₂₈F₃N₄O₂S:505.1807; found: 505.1883. HPLC: 99.69% (% of AUC).

n.N-(2-(3-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)butyramide(42467)

¹H NMR (400 MHz, Chloroform-d) δ 7.87-7.70 (m, 2H), 7.49 (t, J=8.0 Hz,1H), 7.39-7.28 (m, 1H), 7.26-7.18 (m, 2H), 7.14 (d, J=8.0 Hz, 2H), 6.39(d, J=7.9 Hz, 1H), 5.73 (q, J=7.2 Hz, 1H), 3.83 (s, 2H), 3.39 (dt,J=14.1, 6.8 Hz, 2H), 2.25-2.12 (m, 2H), 1.63 (q, J=7.4 Hz, 2H), 0.90(td, J=7.4, 5.2 Hz, 3H). HRMS (ESI): m/z [M+H]+ calcd for C₂₂H₂₄F₃N₄O₂S:465.1494; found: 465.1564. HPLC: 94.16% (% of AUC).

o.N-(2-(3-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)cyclopropanecarboxamide(42468)

¹H NMR (400 MHz, Chloroform-d) δ 7.82-7.62 (m, 2H), 7.44 (d, J=8.2 Hz,1H), 7.26 (dd, J=0.8, 0.3 Hz, 2H), 7.14 (d, J=3.9 Hz, 3H), 5.60 (s, 1H),3.74 (s, 2H), 3.31 (p, J=1.6 Hz, 2H), 1.41 (s, 1H), 0.86 (dd, J=4.5, 2.9Hz, 2H), 0.70 (dd, J=7.8, 3.1 Hz, 2H). HRMS (ESI): m/z [M+H]+ calcd forC₂₂H₂₂F₃N₄O₂S: 463.1337; found: 463.1410. HPLC: 100% (% of AUC).

7. General Procedure for the Synthesis of Thiadiazoles (Route IV)

41791 was then subjected to SFC purification as follows: Column: ChiralPak IA (20×250) mm 5 mm; Co-Solvent (Channel-B)-0.4% DEA in CH₃OH; % ofCo-Solvent-45%; Total Flow-70 g/min; Detection UV-265 nm; ABPR-100 Bar;Column Oven Temperature-Ambient; Run Time-5 min; Channel-A-SuperCritical Fluid CO₂; Solubility-CH₃OH. Two enantiomers were collected andstereochemistry was assigned arbitrarily.

a.(S)—N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(41891)

Peak-1:41891 was isolated as an off-white solid. ¹H NMR (400 MHz,DMSO-d₆): δ 8.86 (d, J=8.0 Hz, 1H), 7.99-7.97 (m, 1H) 7.94 (s, 1H),7.72-7.68 (m, 1H), 7.61-7.58 (m, 1H), 7.24 (s, 4H), 5.49-5.43 (m, 1H),3.69 (s, 2H), 3.39-3.35 (m, 1H), 3.20-3.14 (m, 1H), 1.81 (s, 3H); HRMS(ESI): m/z [M+H]+ calcd for C₂₀H₂₀F₃N₄O₂S: 437.1259; found: 437.1259; MS(MM): m/z 437.1 [M+H]⁺; HPLC: 97.9 (% of AUC).

b.(R)—N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(41892)

Peak-2: 41892 was isolated as an off-white solid. ¹H NMR (400 MHz,DMSO-d₆): δ 8.86 (d, J=8.0 Hz, 1H), 7.99-7.97 (m, 1H) 7.94 (s, 1H),7.72-7.68 (m, 1H), 7.60-7.58 (m, 1H), 7.24 (s, 4H), 5.48-5.43 (m, 1H),3.69 (s, 2H), 3.38-3.37 (m, 1H), 3.20-3.14 (m, 1H), 1.81 (s, 3H); HRMS(ESI): m/z [M+H]+ calcd for C₂₀H₂₀F₃N₄O₂S: 437.1259; found: 436.1255; MS(MM): m/z 437.1 [M+H]⁺; HPLC: 96.0 (% of AUC).

8. Synthesis of Compound No. 41792

Intermediate 1 was synthesized as detailed above.

a. Preparation of Intermediate 2

A solution of tert-butyl(S)-(2-(4-cyanophenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)carbamate(1, 280 mg, 0.64 mmol) in THF (10 mL) at 0° C. was charged with 60% NaH(77 mg, 1.94 mmol) as portion wise over 2 min and stirred at sametemperature for 30 min. To this, EtI (0.12 mL, 1.62 mmol) was added at0° C. and stirred at room temperature for 16 h. The reaction mixture wasquenched with CH₃OH (1 mL). Thereafter, the solvents were removed underreduced pressure to get crude, which was purified over silica gel columnchromatography (eluting with 15% to 20% EtOAc-hexane) to affordtert-butyl(S)-(2-(4-cyanophenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)(ethyl)carbamatein 37% yield as a solid. MS (MM): m/z=461.0 [M-tBu]⁺.

b.2-(4-(aminomethyl)phenyl)-N-ethyl-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethan-1-amine(941792)

A solution of (tert-butyl(S)-(2-(4-(((tert-butoxycarbonyl)amino)methyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)(ethyl)carbamate(3, 45 mg, 0.07 mmol) in CH₂Cl₂ (2 mL) at 0° C. was charged with TFA(0.13 mL, 0.18 mmol) as dropwise over 1 min and stirred at roomtemperature for 16 h. The reaction mixture volatiles were removed underreduced pressure and co-distilled with CH₂Cl₂ (2×10 mL) to get crude,which was purified by Prep-HPLC to afford trifluoro acetic salt of(S)-2-(4-(aminomethyl)phenyl)-N-ethyl-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethan-1-aminein 7% yield as a semi solid. ¹H NMR (400 MHz, CD₃OD): δ 7.78-7.76 (m,2H), 7.54 (t, J=8.0 Hz, 1H), 7.41 (d, J=8.0 Hz, 1H), 7.28 (d, J=8.0 Hz,2H), 7.19 (d, J=8.0 Hz, 2H), 5.28-5.24 (m, 1H), 3.95 (s, 2H), 3.65-3.61(m, 1H), 3.33-3.27 (m, 1H), 3.07-3.02 (m, 2H), 1.28 (t, J=7.2 Hz, 3H);MS (MM): m/z 423.1 [M-TFA]⁺; HPLC: >99 (% of AUC).

9. General Procedure for the Synthesis of Thiadiazoles (Route V)

a.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,4-difluorophenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (41206)

¹H NMR (400 MHz, DMSO-d₆): δ 8.94 (d, J=8.4 Hz, 1H), 8.20 (brs, 3H),8.08-8.05 (m, 1H), 7.85-7.83 (m, 1H), 7.67-7.63 (m, 1H), 7.38 (s, 4H),5.51-5.45 (m, 1H), 3.99 (d, J=5.6 Hz, 2H), 3.44-3.39 (m, 1H), 3.23-3.17(m, 1H), 1.80 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₁₉H₁₉F₂N₄OS:389.1248; found: 389.1249; MS (MM): m/z 389.1 [M−HCl]⁺; HPLC: 94.3 (% ofAUC).

b.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-methoxyphenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (41149)

¹H NMR (300 MHz, DMSO-d₆): δ 8.91 (d, J=8.4 Hz, 1H), 8.21 (brs, 3H),7.52-7.43 (m, 3H), 7.38 (s, 4H), 7.15 (d, J=7.8 Hz, 1H), 5.49-5.44 (m,1H), 4.08 (d, J=5.7 Hz, 2H), 3.84 (s, 3H), 3.48-3.33 (m, 1H), 3.24-3.21(m, 1H), 1.81 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₂₃N₄O₂S:383.1542; found: 383.1538; MS (MM): m/z 383.0 [M−HCl]⁺; HPLC: 91.2 (% ofAUC).

c.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-fluorophenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (41151)

¹H NMR (400 MHz, DMSO-d₆): δ 8.96 (d, J=8.4 Hz, 1H), 8.20 (brs, 3H),7.79 (d, J=1.6 Hz, 2H), 7.63-7.58 (m, 1H), 7.46-7.36 (m, 5H), 5.52-5.46(m, 1H), 3.99 (d, J=5.6 Hz, 2H), 3.44-3.40 (m, 1H), 3.24-3.18 (m, 1H),1.81 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₁₉H₂₀FN₄OS: 371.1342;found: 371.1339; MS (MM): m/z 371.0 [M−HCl]⁺; HPLC: 91.2 (% of AUC).

d.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (41152)

¹H NMR (400 MHz, DMSO-d₆): δ 8.95 (d, J=8.0 Hz, 1H), 8.26-8.21 (m, 5H),7.96 (d, J=4.0 Hz, 1H), 7.83-7.79 (m, 1H), 7.39-7.36 (m, 4H), 5.53-5.47(m, 1H), 3.99 (d, J=5.6 Hz, 2H), 3.46-3.41 (m, 1H), 3.25-3.19 (m, 1H),1.81 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₁₈F₃N₄OS: 421.1310;found: 421.1307; MS (MM): m/z 421.0 [M−HCl]⁺; HPLC: 91.8 (% of AUC).

e.(N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,5-dimethylphenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (42182)

¹H NMR (400 MHz, DMSO-d₆) δ: 8.90 (d, J=8.0 Hz, 1H), 8.19 (brs, 3H),7.56 (s, 2H) 7.38 (s, 4H), 7.21-7.19 (m, 1H), 5.50-5.44 (m, 1H),4.01-3.97 (m, 2H), 3.44-3.40 (m, 1H), 3.23-3.17 (m, 1H), 2.35 (s, 6H),1.80 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₂₁H₂₅N₄OS: 381.1749;found: 381.1745; MS (MM): m/z=381 [M−HCl]⁺; HPLC: 95.2% (% of AUC).

f.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-BROMO-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (42549)

¹H NMR (400 MHz, DMSO-d₆) δ: 9.00 (d, J=8.0 Hz, 1H), 8.45 (s, 1H), 8.32(brs, 3H), 8.27 (s, 1H), 8.21 (s, 1H), 7.42-7.37 (m, 4H), 5.53-5.47 (m,1H), 3.98 (s, 2H), 3.46-3.37 (m, 1H), 3.26-3.20 (m, 1H), 1.82 (s, 3H);HRMS (ESI): m/z [M+H]+ calcd for C₂₀H₁₉BrF₃N₄OS: 499.0415; found:499.0387; MS (MM): m/z=501 [M−HCl]⁺; HPLC: 92.7 (% of AUC).

g.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-methyl-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (42336)

¹H NMR (400 MHz, DMSO-d₆) δ: 8.92 (d, J=8.0 Hz, 1H), 8.15 (brs, 3H),8.08 (s, 1H), 8.05 (s, 1H), 7.78 (s, 1H), 7.38 (m, 4H), 5.53-5.49 (m,1H), 4.00-3.99 (m, 2H), 3.46-3.41 (m, 1H), 3.24-3.19 (m, 1H), 2.50 (s,3H) 1.81 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd for C₂₁H₂₂F₃N₄OS:435.1466; found: 435.1463; MS (MM): m/z=435 [M−HCl]⁺; HPLC: >99 (% ofAUC).

h.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-chloro-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (42412)

¹H NMR (400 MHz, DMSO-d₆) δ: 8.97 (d, J=8.4 Hz, 1H), 8.34 (d, J=1.6 Hz,1H), 8.24 (brs, 4H) 8.11 (s, 1H), 7.39 (s, 4H), 5.53-5.47 (m, 1H), 3.99(s, 2H), 3.46-3.41 (m, 1H), 3.26-3.20 (m, 1H), 1.81 (s, 3H); HRMS (ESI):m/z [M+H]+ calcd for C₂₀H₁₉C1F₃N₄OS: 455.0920; found: 455.0915; MS (MM):m/z=455.2 [M−HCl]⁺; HPLC: >99 (% of AUC).

10. Synthesis of Compound No. 42474

Intermediate 8 was synthesized as detailed above.

a. Preparation of Intermediate 10

A solution of(S)—N-(1-(5-(3-bromo-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)-2-(4-cyanophenyl)ethyl)acetamide(8, 0.60 mmol), K₂CO₃ (251 mg, 1.81 mmol) and corresponding boronic acid(9, 0.72 mmol) in mixture of 1,4-Dioxane (9 mL) and water (1 mL) wasdegassed with argon gas for 20 min. To this charged with PdCl₂(dppf)(0.06 mmol) and stirred under argon atmosphere at 90° C. for 2 h.Reaction mixture was concentrated under reduced pressure to get crude,this was purified by silica-gel column chromatography eluting with 75%to 80% EtOAC/hexane to afford intermediate 10 as off-white solid. MS(MM): m/z=511.2 [M+H]⁺. Intermediate 10 and 11 were was used in nextstep following General procedure for the synthesis of final compound.

b.N-(2-(4-(aminomethyl)phenyl)-1-(5-(4′-fluoro-5-(trifluoromethyl)-[1,1′-biphenyl]-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (42474)

¹H NMR (400 MHz, DMSO-d₆) δ: 8.92 (d, J=8.0 Hz, 1H), 8.42 (s, 1H), 8.25(s, 1H), 8.18 (s, 4H), 7.96-7.92 (m, 2H), 7.39-7.35 (m, 6H), 5.55-5.49(m, 1H), 3.99 (s, 2H), 3.48-3.45 (m, 1H), 3.23-3.17 (m, 1H), 1.82 (s,3H); HRMS (ESI): m/z [M+H]+ calcd for C₂₆H₂₂F₄N₄OS: 515.1529; found:515.1513; MS (MM): m/z=515 [M+H]⁺; HPLC: 98.9 (% of AUC).

11. Synthesis of Compound No. 42550

a. Preparation of Intermediate 4

To a solution of(S)—N-(2-(4-cyanophenyl)-1-(5-(5-(trifluoromethyl)-2′,3′,4′,5′-tetrahydro-[1,1′-biphenyl]-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(3, 250 mg, 0.50 mmol), Raney-Ni (20 mg) and Boc-anhydride (0.23 mL,1.00 mmol) in CH₃OH (30 mL) was kept in H₂ balloon pressure at roomtemperature for 16 h. Reaction mixture was filtered through pad ofcelite bed and washed with CH₃OH (50 mL), concentrated the filtrateunder reduced pressure to afford tert-butyl(S)-(4-(2-acetamido-2-(5-(5-(trifluoromethyl)-2′,3′,4′,5′-tetrahydro-[1,1′-biphenyl]-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)benzyl)carbamate(4, 99% yield) as liquid. MS (MM): m/z=601 [M+H]⁺.

b. Preparation of Intermediate 5

To a solution of tert-butyl(S)-(4-(2-acetamido-2-(5-(5-(trifluoromethyl)-2′,3′,4′,5′-tetrahydro-[1,1′-biphenyl]-3-yl)-1,3,4-thiadiazol-2-yl)ethyl)benzyl)carbamate(4, 250 mg, 0.50 mmol), 10% Pd/C (50% moist) (50 mg) in CH₃OH (30 mL)was kept in H₂ balloon pressure at room temperature for 4 h. stirred atfor 3 h. Reaction mixture was filtered through pad of celite bed andwashed with CH₃OH (50 mL), concentrated the filtrate under reducedpressure to afford tert-butyl(S)-(4-(2-acetamido-2-(5-(3-cyclohexyl-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)benzyl)carbamate(5, 250 mg, 81%) as liquid. MS (MM): m/z=603 [M+H]⁺.

c.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-cyclohexyl-5-(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidehydrochloride (42550)

¹H NMR (400 MHz, DMSO-d₆) δ: 9.02 (d, J=8.0 Hz, 1H), 8.36 (brs, 3H),8.07 (d, J=4.4 Hz, 2H), 7.78 (s, 1H), 7.45-7.37 (m, 4H), 5.52-5.48 (m,1H), 3.98 (s, 2H), 3.46-3.42 (m, 1H), 3.26-3.16 (m, 1H), 2.79-2.73 (m,1H), 1.73-1.70 (m, 7H), 1.56-1.44 (m, 2H), 1.40-1.23 (m, 4H); HRMS(ESI): m/z [M+H]+ calcd for C₂₆H₃₀F₃N₄OS: 503.2092; found: 503.2080; MS(MM): m/z=503 [M−HCl]⁺; HPLC: 91.4 (% of AUC).

12. Synthesis of Compound No. 42320

a.N-(2-(4-((dimethylamino)methyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42320)

A solution of(S)—N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(SRI-40000, 200 mg, 0.45 mmol) in 86% formic acid (2 mL, 44.8 mmol) wascharged with 37% formaldehyde (1 mL, 13.43 mmol) as drop wise over 1 minand stirred at 80° C. for 6 hr. Reaction mixture diluted with ice coldwater (20 mL) and basified up to 14 pH with 2N NaOH solution, aqueouslayer was extracted with EtOAc (2×30 mL), washed the organic layer withwater (30 mL), dried over anhydrous Na₂SO₄ and concentrated underreduced pressure to get crude, which was purified by silica-gel columnchromatography (eluting with 25% to 30% CH₃OH/CH₂Cl₂) to afford(S)—N-(2-(4-((dimethylamino)methyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidein 31% yield as off-white solid. ¹H NMR (400 MHz, DMSO-d₆): δ 8.88 (d,J=8.0 Hz, 1H), 7.99-7.93 (m, 2H), 7.72-7.68 (m, 1H), 7.60-7.58 (m, 1H),7.29-7.23 (m, 4H), 5.51-5.46 (m, 1H), 3.52 (s, 2H), 3.41-3.36 (m, 1H),3.23-3.17 (m, 1H), 2.22 (s, 6H), 1.80 (s, 3H); HRMS (ESI): m/z [M+H]+calcd for C₂₂H₂₄F₃N₄O₂S: 465.1572; found: 465.1565; MS (MM): m/z=465.0[M+H]⁺; HPLC: 98.1 (% of AUC).

13. Synthesis of Compound No. 42140

Intermediate 1 was synthesized as detailed above.

a.N-(2-(4-((methylamino)methyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamide(42140)

A solution of tert-butyl(S)-(4-(2-acetamido-2-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)benzyl)(methyl)carbamate(2, 100 mg, 0.18 mmol) in CF₃CH₂OH (2 mL) was charged with TMSCl (0.03mL, 2 vol) as dropwise over 1 min at room temperature and stirred atsame temperature for 16 h. Thereafter, the volatiles were removed underreduced pressure to get crude product. The crude product was purified byMS triggered HPLC (HPLC Method: LUNA C18@10 μm (21.2×250 mm, 10 μm);mobile phase, A=0.05% TFA in H₂O and B═CH₃CN; Flow rate: 20 mL/min,Injection volume: 500 μL, Runtime: 20 min, gradient: 90-15% A, 10-85% B(0.0-15 min); UV detection at 220 nm), obtained pure fractions wereconcentrated and basified with saturated NaHCO₃ solution (3 mL),extracted with CH₂Cl₂ (2×3 mL), separated organic layer was dried overanhydrous Na₂SO₄ and concentrated under reduced pressure to afford(S)—N-(2-(4-((methylamino)methyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)acetamidein 22% yield as a liquid. ¹H NMR (400 MHz, DMSO-d₆): δ 7.93 (d, J=8.0Hz, 1H), 7.88 (s, 1H), 7.67 (t, J=8.0 Hz, 1H), 7.52 (d, J=8.4 Hz, 1H),7.23 (s, 4H), 6.23-6.12 (m, 1H), 3.70 (s, 2H), 3.57-3.52 (m, 1H),3.36-3.33 (m, 1H), 2.96 (s, 3H), 1.93 (s, 3H); MS (MM): m/z=451.0[M+H]⁺; HPLC: >99 (% of AUC).

14. Synthesis of Compound Nos. 42335 and 42319

Intermediates 1, 3, 4, and 5 were synthesized as detailed above.

a. Preparation of Intermediate 2

A solution of Intermediate 1 in THF (25 mL) at −40° C. was charged with60% sodium hydride (6 eq.) as portion wise over 3 min and stirred atsame temperature for 30 min. To this, methyl iodide (10 eq.) was addedas drop wise at −40° C. and stirred at room temperature for 4 h.Reaction mixture was quenched with CH₃OH (5 mL) and concentrated underreduced pressure to get crude, which was purified over silica-gel columnchromatography (eluting with 25% to 30% EtOAc/hexane) to affordcorresponding intermediate-2.

b.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3-(trifluoromethoxy)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)-N-methylacetamidehydrochloride (42335)

¹H NMR (400 MHz, DMSO-d₆-VT) δ: 8.18 (brs, 3H), 7.94 (d, J=7.6 Hz, 1H),7.88 (s, 1H), 7.70-7.66 (m, 1H), 7.53 (d, J=8.0 Hz, 1H), 7.41-7.39 (m,4H), 6.26-6.24 (m, 1H), 3.98 (s, 2H), 3.63-3.58 (m, 1H), 3.42-3.38 (m,1H), 2.89 (s, 3H), 1.95 (s, 3H); MS (MM): m/z=451 [M−HCl]; HPLC: 97.3 (%of AUC).

c.N-(2-(4-(aminomethyl)phenyl)-1-(5-(3,5-bis(trifluoromethyl)phenyl)-1,3,4-thiadiazol-2-yl)ethyl)-N-methylacetamidehydrochloride (42319)

¹H NMR (400 MHz, DMSO-d₆-VT) δ: 8.56 (s, 2H), 8.27-8.18 (m, 4H), 7.42(s, 4H), 6.32 (m, 1H), 4.0.3 (s, 2H), 3.69-3.64 (m, 1H), 3.48-3.42 (m,1H), 2.97 (s, 3H), 1.99 (s, 3H); HRMS (ESI): m/z [M+H]+ calcd forC₂₂H₂₁F₆N₄OS: 503.134; found: 503.1338; MS (MM): m/z=503 [M−HCl]⁺; HPLC:98.4% (% of AUC).

15. Evaluation of Inhibitory Activity of Compound 35

Compound 35 was evaluated for its ability to inhibit TGF-β in both ELISAbased assays with purified protein components (latent TGFβ and TSP1 orin TSP1-treated cell conditioned media). Briefly, compound 35demonstrated 15%, 67%, and 67% inhibition at 1 μm, 50 μm, and 100 μm,respectively.

16. Evaluation of Oxadiazole and Thiadiazole Analogs as TGF-BetaInhibitors

A summary of the inhibitory activity of representative thiadiazoleanalogs (Tables i and ii) and oxadiazole analogs (Table ii) is shownbelow.

TABLE I

Secondary Compd Assay No. R^(a) R^(b) R^(c) R² R¹ IC₅₀ (nM) 39245—CH₂NH₂ H

H —CH₃ 33 40051 —CH₂NH₂ H

H —CH₃ 49 40000 —CH₂NH₂ H

H —CH₃ 28 40653 —CH₂NH₂ H

H —CH₃ 39 40652 —CH₂NH₂ H

H —CH₃ NA 41152 —CH₂NH₂ H

H —CH₃ 9 41149 —CH₂NH₂ H

H —CH₃ 183 42140 —CH₂NHMe H

H —CH₃ 51 42320 —CH₂N(CH₃)₂ H

H —CH₃ 2 41791 —CH₂NH₂ (racemic) H

H —CH₃ 61 41891 —CH₂NH₂ ((S) randomly assign) H

H —CH₃ 26 41892 —CH₂NH₂ ((R) randomly assign) H

H —CH₃ 26.9 42330 —CH₂NH₂ H

H —CH₃ 6 42335 —CH₂NH₂ H

—CH₃ H 30 42473 —CH₂NH₂ H

H —CH₃ 8 39999 —NH₂ H

H —CH₃ 15 42461 —CH₂NH₂ H

H

5 42468 —CH₂NH₂ H

H

8 42470 —CH₂NH₂ H

H —CH₃ 8

TABLE II

Sec- ondary Assay Cmpd IC₅₀ No. p R³ R^(c) R² R¹ X (nM) 40074 3 —NH₂

H —CH₃ O >1 μM 38442 2 —NH₂

H —CH₃ S >1 μM 39139 3 —NH₂

H —CH₃ S 13 39261 3 —NH₂

H —CH₃ S 324 39425 3 —NH₂

H —CH₃ S >1 μM

For initial screening, an ELISA-based screening assay was used in whichpurified human platelet TSP-1 was incubated with compounds and thenincubated with recombinant latent TGF-β1 (purchased from R&D Systems).Activity is measured in a commercially available ELISA which detectsonly active TGF-β (R &D Systems). Activity in the presence of compoundsis compared to activity in TSP-1+ latent TGF-β samples withoutinhibitory compounds (Lu et al. (2016) Am J Pathol 186:678-690).

To specifically assess activity of compounds in liver cell specificassays, two different assays were used. In the first, human hepaticstellate cells were incubated overnight in low serum media to conditionthe media with secreted latent TGF-β. Purified TSP1 either pre-incubatedwith compounds or not will be added to cultures and then conditionedmedia harvested to assess TGF-β biological activity using the R&DSystems ELISA as above. Hepatic stellate cells will be purchased fromcommercial sources. Although hepatic stellate cells are the primarydrivers of liver fibrosis, conditions which drive liver fibrosis caninduce hepatocyte TSP-1 expression which can then have paracrine effectson controlling TGF-β activation in hepatic stellate cells. Furthermore,TGF-β can negatively impact hepatocyte regeneration following injury.Therefore, the ability of compounds to blockTSP-1 activation of latentTGF-β will also be assessed in cultured primary human hepatocytesfollowing the protocol described for the hepatic stellate cells. Similarapproaches have successfully been used to screen compounds which inhibithuman myeloma cell derived latent TGF-β activation by TSP-1 (Lu et al.(2016) Am J Pathol 186:678-690).

18. TSP1 and TGF-b Decrease Osteoblast Differentiation and TSP1Inhibitory Peptide LSKL Increases Osteoblast Differentiation by MSCsUnder Osteogenic Conditions

Referring to FIG. 1A, MSCs were grown to confluence in basal (control)media. Cells were treated with control growth media, osteogenic media,or osteogenic media with TGF-3 (5 ng/mL) or stripped TSP1 (10 nM),TSP1+LSKL (25 μM), TSP1+SLLK (25 μM control peptide), or TSP1+anti-TGF-β(5 μg/mL). Cultures were fed daily for 20 days. Alkaline phosphatasestaining is representative of triplicate wells.

Referring to FIG. 1B, cells were treated every 2 days for 20 days withMSC growth media (control) or osteogenic media with TGF-β (5 ng/mL) orTSP1 (10 nM)±daily treatment with 25 μM LSKL or SLLK peptides. RNAisolated from cells was used for RT-PCR analysis of Runx2 expression.Samples were run in duplicate and each experimental treatment intriplicate.

19. LSKL Peptide Treatment Reduces MM Tumor Burden in the SCID-Tibia MMModel

Referring to FIG. 2A and FIG. 2B, CAG human myeloma cells were injectedinto the intratibial marrow space of SCID mice. After 2 weeks, tumorswere imaged by bioluminescence and serum lg kappa levels measured. Micewere randomized to equalize lg kappa levels. Osmotic pumps wereimplanted subcutaneously to deliver saline or LSKL peptide (30mg/kg/day) (n=10/group). Tumors were imaged and serum lg kappa levelsmeasured at 2 and 4 weeks of treatment. Data are means±SEM.Bioluminescence; *p=0.019 ANOVA, serum kappa; p=0.037, t-test.

20. LSKL Reduces Phospho-Smad 2 in the Bone Marrow

Referring to FIG. 3A-C, at 4 weeks of treatment, tibiae from miceinjected with CAG MM cells were fixed and stained with antibody tophosphor-Smad 2. Left panels are from 2 different saline treated miceand the right panels are from LSKL-treated mice. Pixels of brownstaining were quantified in 4 fields per animal. 5-6 animals per groupwere analyzed. Data are the percent area exceeding the threshold forpositive staining (FIG. 3A). FIG. 3B represents the mean±SEM and FIG. 3Cshows the data for individuals. P=0.004.

21. TSP1 Induces TGF-b Activity in CAG MM Cells and LSKL Reduces TGF-bActivity

Referring to FIG. 4A, CAG MM cells were incubated with 30 nM TSP1 for 6hrs±LSKL or SLLK. Cell lysates were immunoblotted for phosphor-Smad 2.Blots were stripped and reprobed for total Smad 2/3 and GAPDH. Resultsare normalized to GAPDH (untreated controls=1). LSKL reduces TSP1induced treatment or luciferase activity in cells treated with activeTGF-β (not shown).

Referring to FIG. 4B, CAG-heparanase MM cells were treated with 67 nMTSP1 and conditioned media were assessed for TGF-β activity using PAI-1promoter luciferase reporter assay. There is ˜1.19 pM TGF-β in the addedTSP1 and LSKL blocks 80% of the CAG-heparanase MM cell generated TGF-βactivity.

22. Pharmacokinetic Evaluation of Compound No. 42140 Following a SingleOral and Intravenous Administration to CD1 Mouse

a. Formulation Preparation

A NMP stock solution was prepared by adding 1.136 mL of NMP to 5.68 mgof compound no. 42140 with vortexing and sonification, to obtain asolution with a concentration at 5 mg/mL of 42140:01. Next, to preparean intravenous formulation, 0.100 mL of the 5 mg/mL stock solution wasplaced in a new vial. 0.100 mL of NMP and 0.400 mL of PEG400 were addedwith vortexing and sonification, followed by addition of 0.400 mL ofsaline with vortexing and sonification. This resulted in a finalsolution with a concentration of 0.5 mg/mL of compound no. 42140:01.Alternatively, to prepare an oral formulation, 0.200 mL of the 5 mg/mLstock solution was placed in a new vial. 0.400 mL of PEG400 was addedwith vortexing and sonification, followed by addition of 0.400 mL ofsaline with vortexing and sonifiction. This resulted in a final solutionwith a concentration of 1.0 mg/mL of compound no. 42140:01.

TABLE 1 Sample Dilution Nominal Measured Mean Route Name Factor (mg/mL)(mg/mL) (mg/mL) IV Dose_IV_1 10000 0.5 0.583 0.577 Dose_IV_2 10000 0.579Dose_IV_3 10000 0.569 PO Dose_PO_1 10000 1 1.16 1.12 Dose_PO_2 100001.08 Dose_PO_3 10000 1.11 Sample Accuracy SD CV Route Name (%) (mg/mL)(%) IV Dose_IV_1 115 0.007 1.25 Dose_IV_2 Dose_IV_3 PO Dose_PO_1 1120.04 3.62 Dose_PO_2 Dose_PO_3

b. Analytical Method

Briefly, the desired serial concentrations of working solutions wereachieved by diluting a stock solution of the compound with 100%acetonitrile. 3 μL of working solutions (5, 10, 20, 50, 100, 500, 1000,5000, 10000 ng/mL) were added to 30 μL of the blank CD1 mouse plasma toachieve calibration standards of 0.5-1000 ng/mL (0.5, 1, 2, 5, 10, 50,100, 500, 1000 ng/mL) in a total volume of 33 μL. Five quality controlsamples at 1 ng/mL, 2 ng/mL, 5 ng/mL, 50 ng/mL and 800 ng/mL for plasmawere prepared independently of those used for the calibration curves.These QC samples were prepared on the day of analysis in the same way ascalibration standards.

Next, 33 μL standards, 33 μL QC samples, and 33 μL unknown samples (30μL plasma with 3 μL blank solution) were added to 200 μL of acetonitrilecontaining IS mixture for precipitating protein, respectively. Then thesamples were vortexed for 30 s. After centrifugation at 4 degreeCelsius, 4000 rpm for 15 min, 3 μL of supernatant was injected into theLC/MS/MS system for quantitative analysis.

HPLC analysis was performed using 100% water with 0.1% formic acid(Solution A) and 100% acetonitrile with 0.1% formic acid (Solution B)with a flow rate of 0.6 mL/min. The gradient is shown in Table 2 below.

TABLE 2 Time (min) A (%) B (%) 0.01 90.0 10.0 0.30 90.0 10.0 1.80 35.065.0 2.10 35.0 65.0 2.11 90.0 10.0 2.50 90.0 10.0

c. Results

The IV plasma concentration profile of compound no. 42140 is shown inTable 3, FIG. 6A, and FIG. 6C. A summary of the IV pharmacokineticparameters is shown in Table 4.

TABLE 3 IV Dose: 1 mg/kg Time Concentration (ng/mL) Mean SD CV (h) Mouse1 Mouse 2 Mouse 3 (ng/mL) (ng/mL) (%) 0.0833 96.6 89.5 86.3 90.8 5.35.81 0.25 81.5 65.0 74.2 73.6 8.3 11.2 0.5 57.2 53.8 48.1 53.0 4.6 8.671 57.8 42.1 43.7 47.9 8.6 18.0 2 43.7 34.1 39.9 39.2 4.8 12.3 4 26.118.8 23.3 22.7 3.7 16.2 8 16.9 15.5 14.9 15.8 1.0 6.51 24 6.40 5.76 4.275.48 1.09 20.0

TABLE 4 IV Dose: 1 mg/kg PK parameters Unit Mouse 1 Mouse 2 Mouse 3 MeanSD CV(%) Cl_obs mL/min/kg 29.9 34.3 37.4 33.9 3.8 11.1 T_(1/2) h 10.311.6 8.36 10.1 1.6 16.0 C₀ ng/mL 105 105 93 101 7 6.87 AUC_(last)h*ng/mL 462 389 394 415 41 9.83 AUC_(Inf) h*ng/mL 557 486 445 496 5711.4 AUC__(% Extrap)_obs % 17.0 19.8 11.6 16.1 4.2 26.0 MRT_(Inf) _obs h12.1 13.7 9.69 11.8 2.0 16.9 AUC_(last)/D h*mg/mL 462 389 394 415 419.83 V_(ss)_obs L/kg 21.8 28.1 21.8 23.9 3.7 15.3

The p.o. plasma concentration profile of compound no. 42140 is shown inTable 5, FIG. 6B, and FIG. 6C. A summary of the p.o. pharmacokineticparameters is shown in Table 6.

TABLE 5 PO Dose: 5 mg/kg Time Concentration (ng/mL) Mean SD CV (h) Mouse4 Mouse 5 Mouse 6 (ng/mL) (ng/mL) (%) 0.25 54.5 60.6 73.1 62.7 9.5 15.10.5 92.2 91.9 106 97 8 8.33 1 117 129 136 127 10 7.55 2 139 140 175 15121 13.5 4 103 112 123 113 10 8.89 8 72.7 91.4 93.5 85.9 11.5 13.3 2429.8 22.7 29.6 27.4 4.0 14.8

TABLE 6 PO Dose: 5 mg/kg PK parameters Unit Mouse 4 Mouse 5 Mouse 6 MeanSD CV(%) T_(1/2) h 11.5 8.47 9.71 9.9 1.5 15.5 T_(max) h 2.00 2.00 2.002.00 0.00 0.000 C_(max) ng/mL 139 140 175 151 21 13.5 AUC_(last) h*ng/mL1619 1788 1963 1790 172 9.62 AUC_(Inf) h*ng/mL 2114 2065 2378 2186 1687.70 AUC__(% Extrap)_obs % 23.4 13.4 17.4 18.1 5.0 27.8 MRT_(Inf) _obs h15.8 11.4 13.1 13.4 2.21 16.5 AUC_(last)/D h*mg/mL 324 358 393 358 349.62 F % 78.0 83.3 95.9 85.7 9.2 10.7

23. Pharmacokinetic Evaluation of Compound No. 42320 Following a SingleOral and Intravenous Administration to CD1 Mouse

a. Formulation Preparation

A NMP stock solution was prepared by adding 2.092 mL of NMP to 10.46 mgof compound no. 42320 with vortexing and sonification, to obtain asolution with a concentration at 5 mg/mL of 42140:01. Next, to preparean intravenous formulation, 0.100 mL of the 5 mg/mL stock solution wasplaced in a new vial. 0.100 mL of NMP and 0.400 mL of PEG400 were addedwith vortexing and sonification, followed by addition of 0.400 mL ofsaline with vortexing and sonification. This resulted in a finalsolution with a concentration of 0.5 mg/mL of compound no. 42320:01.Alternatively, to prepare an oral formulation, 0.200 mL of the 5 mg/mLstock solution was placed in a new vial. 0.400 mL of PEG400 was addedwith vortexing and sonification, followed by addition of 0.400 mL ofsaline with vortexing and sonifiction. This resulted in a final solutionwith a concentration of 1.0 mg/mL of compound no. 42320:01.

TABLE 7 Sample Dilution Nominal Measured Mean Route Name Factor (mg/mL)(mg/mL) (mg/mL) IV Dose_IV_1 10000 0.5 0.513 0.493 Dose_IV_2 10000 0.477Dose_IV_3 10000 0.490 PO Dose_PO_1 10000 1 0.960 0.962 Dose_PO_2 100000.963 Dose_PO_3 10000 0.962 Sample Accuracy SD CV Route Name (%) (mg/mL)(%) IV Dose_IV_1 98.7 0.018 3.70 Dose_IV_2 Dose_IV_3 PO Dose_PO_1 96.20.002 0.159 Dose_PO_2 Dose_PO_3

b. Analytical Method

Briefly, the desired serial concentrations of working solutions wereachieved by diluting a stock solution of the compound with 100%acetonitrile. 3 μL of working solutions (5, 10, 20, 50, 100, 500, 1000,5000, 10000 ng/mL) were added to 30 μL of the blank CD1 mouse plasma toachieve calibration standards of 0.5-1000 ng/mL (0.5, 1, 2, 5, 10, 50,100, 500, 1000 ng/mL) in a total volume of 33 μL. Five quality controlsamples at 1 ng/mL, 2 ng/mL, 5 ng/mL, 50 ng/mL, and 800 ng/mL for plasmawere prepared independently of those used for the calibration curves.These QC samples were prepared on the day of analysis in the same way ascalibration standards.

Next, 33 μL standards, 33 μL QC samples, and 33 μL unknown samples (30μL plasma with 3 μL blank solution) were added to 200 μL of acetonitrilecontaining IS mixture for precipitating protein, respectively. Then thesamples were vortexed for 30 s. After centrifugation at 4 degreeCelsius, 4000 rpm for 15 min, 3 μL of supernatant was injected into theLC/MS/MS system for quantitative analysis.

HPLC analysis was performed using 100% water with 0.1% formic acid(Solution A) and 100% acetonitrile with 0.1% formic acid (Solution B)with a flow rate of 0.6 mL/min. The gradient is shown in Table 8 below.

TABLE 8 Time (min) A (%) B (%) 0.01 90.0 10.0 0.30 90.0 10.0 1.80 40.060.0 2.10 40.0 60.0 2.11 90.0 10.0 2.50 90.0 10.0

c. Results

The IV plasma concentration profile of compound no. 42320 is shown inTable 9, FIG. 7A, and FIG. 7C. A summary of the IV pharmacokineticparameters is shown in Table 10.

TABLE 9 IV Dose: 1 mg/kg Time Concentration (ng/mL) Mean SD CV (h) Mouse1 Mouse 2 Mouse 3 (ng/mL) (ng/mL) (%) 0.0833 86.9 90.3 85.7 87.6 2.42.72 0.25 68.4 65.0 68.3 67.2 1.9 2.88 0.5 68.0 59.2 52.7 60.0 7.7 12.81 41.2 39.4 47.1 42.6 4.0 9.46 2 26.5 23.9 25.9 25.4 1.4 5.35 4 11.99.71 13.0 11.5 1.7 14.5 8 4.08 3.66 5.31 4.35 0.86 19.7 24 BLOQ BLOQBLOQ NA NA NA

TABLE 10 IV Dose: 1 mg/kg PK parameters Unit Mouse 1 Mouse 2 Mouse 3Mean SD CV(%) Cl_obs mL/min/kg 91.3 101 86.3 93 7 7.90 T_(1/2) h 2.272.29 2.68 2.41 0.23 9.68 C₀ ng/mL 97.9 106 96.0 100 6 5.54 AUC_(last)h*ng/mL 169 153 172 165 10 6.22 AUC_(Inf) h*ng/mL 183 165 193 180 147.74 AUC__(% Extrap)_obs % 7.32 7.31 10.6 8.4 1.9 22.9 MRT_(Inf)_obs h2.66 2.59 3.17 2.81 0.32 11.3 AUC_(last)/D h*mg/mL 169 153 172 165 106.22 V_(ss)_obs L/kg 14.6 15.7 16.4 15.6 0.9 5.94

The p.o. plasma concentration profile of compound no. 42140 is shown inTable 11, FIG. 7B, and FIG. 7C. A summary of the p.o. pharmacokineticparameters is shown in Table 12.

TABLE 11 PO Dose: 5 mg/kg Time Concentration (ng/mL) Mean SD CV (h)Mouse 4 Mouse 5 Mouse 6 (ng/mL) (ng/mL) (%) 0.25 100 71.4 78.6 83 1517.9 0.5 201 121 122 148 46 31.0 1 193 119 112 141 45 31.8 2 165 100 105123 36 29.4 4 88.4 64.2 77.7 76.8 12.1 15.8 8 49.0 37.2 37.4 41.2 6.816.4 24 BLOQ BLOQ 3.26 NA NA NA

TABLE 12 PO Dose: 5 mg/kg PK parameters Unit Mouse 4 Mouse 5 Mouse 6Mean SD CV(%) T_(1/2) h 3.56 4.31 4.42 4.10 0.47 11.4 T_(max) h 0.5000.500 0.500 0.500 0.000 0.000 C_(max) ng/mL 201 121 122 148 46 31.0AUC_(last) h*ng/mL 856 569 940 788 194 24.6 AUC_(Inf) h*ng/mL 1108 801961 956 153 16.0 AUC__(% Extrap)_obs % 22.7 28.9 2.16 17.9 14.0 78.1MRT_(Inf)_obs h 5.27 6.33 5.84 5.81 0.53 9.15 AUC_(last)/D h*mg/mL 171114 188 158 39 24.6 F % 104 69.0 107 93 21 22.5

24. Activity of SRI-40000 in a Rat Model of Lung Fibrosis

a. Experimental Methods

Animal: Species and quality level: SD rats, SPF grade; Gender andnumber: male, 12; Purchasing body weight range: 260-280 g; CompanyCertificate No.: SCXX (zhe) 2018-0001, Zhejiang Vital River LaboratoryAnimal Technology Co., Ltd.

Animal Housing: Rats were housed in the Animal House Facility of the KCIBiotech Inc. under international standards for temperature, humidity andlight control system. The animal use protocol has been reviewed andapproved by the Institutional Animal Care and Use Committee (IACUC) ofKCI Biotech Inc. All experimental procedures were conducted inconformity with institutional guidelines of KCI Biotech Inc.

Model Establishment:

This study was carried out in strict accordance with the SOPinstitutional guidelines for the care and use of laboratory animals.Rats were anesthetized by intraperitoneal injection of pentobarbitalsodium at dose of 50 mg/kg. Then rat neck skin was disinfected andopened in layers. The trachea was exposed carefully. Bleomycin (BLM) wasdirectly injected into left main bronchus at a dose of 3 mg/kg bodyweight in volume of 1.0 ml/kg via a cannula. After closing the tracheaand skin in layers the animal was moved on an electric heat pad at 37°C. to wait waking up from anesthesia before returning to holding cageswith free access to water and diet.

Experiment Grouping:

Rats were assigned into two groups: Model (Group-1, n=6), CPD-X(Group-2, 10 mg/kg/d, n=6) (Table 13).

TABLE 13 BLM CPD Dosage Dosing Group N (3.0 mg/kg) dosing CPD Routemg/kg rate G1 6 Yes No Saline ip QD G2 6 Yes Yes CPD-X ip 10 QD

Drug Administration:

A Test article, CPD-X was designed as an intraperitoneal injection oncea day starting from day-8 of modeling for 14 days (Table 13). The salineas a vehicle for model group via a ip injection once a day for 14 days.

Left Lung Collection for Pathology Analysis:

One day after the last dosing all animals were euthanized according tothe standard SOP at KCI. After confirming the animal death the left lungBALF was collected according the standard SOP at KCI. The BALF wasfrozen in liquid nitrogen and stored at −80° C. The left lungs then wereperfused with equal volume of 10% formaldehyde solution (3 mL for eachlung).

Lung pathology was processed after lung fixation. All animal hearts werecollected at same time, weighted, and fixed in 10% formaldehyde solutionfor histology examination.

Left Lung Pathology Assay:

The whole left lung was dehydrated and wax embedded following KCIpathology SOP, then sectioned at 3 m in thickness. HE and MassonTrichrome staining were processed following KCI pathology standardstaining SOPs, whole slides were then scanned by Hamamatsu NanoZoomerDigital Pathology S210 slide scanner after staining. Bronchiole andpulmonary arteriole damage and inflammatory cell infiltration infibrosis core and fibrotic board area were scored with H&E stainedslides (Table 14 and Table 15, FIG. 8), for which 5 different areas wereselected in each lung slide. BLM induced left lung injury area andAshcraft scoring for fibrosis were evaluated with Masson Trichromestained slides (Table 16 and FIG. 9), for which 10 different areas wereselected in each lung slide.

TABLE 14 Score The damage of terminal bronchiole wall 0 Normal structure1 Normal structure with less than ½ of the terminal bronchiole wall areainjury and characterized by bronchial epithelial cells damage andepithelium regeneration, wall edema, medium layer of the mucosal muscledegeneration or regeneration. 2 Normal structure with more than ½ of theterminal bronchiole wall area injury and characterized by bronchialepithelial cells damage and epithelium regeneration, wall edema, mediumlayer of the mucosal muscle degeneration or regeneration. 3 Normalstructure with more than ½ area of the terminal bronchiole wall areainjury and characterized by bronchial epithelial cells damage andepithelium regeneration, wall edema, medium layer of the mucosal muscledegeneration or regeneration, granulomas formation or fibrosis. Theterminal bronchiole wall inflammatory cells infiltration 0 Normalstructure with no inflammatory cells infiltration 1 The terminalbronchiole outside wall with a few scattered inflammatory cellinfiltration (less than 10) but no focal. 2 The terminal bronchioleoutside wall with a lot scattered inflammatory cell infiltration whichis focal or diffuse and totaled less than ½ area of the terminalbronchiole wall. 3 The terminal bronchiole outside wall with diffuseinfiltration of inflammatory cells and totaled more than ½ area of theterminal bronchiole wall, inflammatory cells infiltration in the innerand medium layer of the membrane.

TABLE 15 Score Pulmonary small arteries wall damage 0 The structure ofpulmonary small arteries is clear and complete 1 The parts endothelialcells exfoliate 2 The endothelial cells exfoliate, medium layer of thesmooth muscle degeneration, regeneration or small focal necrosis. 3 Theendothelial cells exfoliate, medium layer of the smooth muscledegeneration, regeneration or small focal necrosis, medium layer of thesmooth muscle degeneration, regeneration or small focal necrosis, mediumlayer granulomas formation or fibrosis. Pulmonary arteriole inflammatoryinfiltration 0 Normal structure of pulmonary small arteries 1 Thepulmonary small arteries outside wall with a few scattered inflammatorycell infiltration (less than 10) but no focal. 2 The pulmonary smallarteries outside wall with a lot scattered inflammatory cellinfiltration which is focal or diffuse and totaled less than ½ area ofthe artery wall. 3 The pulmonary small arteries outside wall withdiffuse infiltration of inflammatory cells and totaled more than ½ areaof the pulmonary small artery wall, inflammatory cells infiltration inthe medium layer of the membrane.

TABLE 16 Grade of fibrosis Ashcroft scoring criteria 0 Alveolar septum:no fibrosis lesion Structure: normal 1 Alveolar septum: Isolated andSimple Pulmonary fibrosis ( alveolar walls thicken but less than oftriple times normal lung) Structure: Large alveolar areas, littleexudate, no fibrosis material. 2 Alveolar septum: Clear fibrosis change(alveolar walls thicken and lager than of triple times normal lung),small nodule formation but no connection. Structurce: Large alveolarareas, little exudate, no fibrosis material. 3 Alveolar septum: Earlystage fibrosis forms in all alveolar (alveolar walls thicken and lagerthan of triple times normal lung) Structure: Large alveolar areas,little exudate, no fibrosis material. 4 Alveolar septum: Alveolar septumis still visible. Structure: Isolated fibrosis nodule formation inalveolar (≤10% at high magnification) 5 Alveolar septum: Alveolar septumis still visible. Structure: Integrate fibrosis nodule formation inalveolar (>10% and ≤50% at high magnification). Lung structure issubstantially impaired but exists. 6 Alveolar septum: seen but barelyexisted. Structure: Integrate fibrosis nodule formation in alveolar(>50% at high magnification). Lung structure is barely exists. 7Alveolar septum: Not exist. Structure: Pulmonary alveoli andinterstitial fibrosis proliferation were seen but there are still 5vacuole structure. 8 Alveolar septum: Not exist. Structure: Pulmonaryalveoli and interstitial fibrosis proliferation were seen at highmagnification.

The animal hearts were dehydrated and wax embedded following KCIpathology SOP, then sectioned at 3 m in thickness. HE staining wasprocessed following KCI pathology standard staining SOPs, whole slideswere then scanned by Hamamatsu NanoZoomer Digital Pathology S210 slidescanner after staining. The thickness of left ventricle wall (LV),septum and right ventricle wall (RV) were measured at five differentpoints and calculated the average thickness of LV, septum and RV.

Statistical Analysis:

A Statistical analysis was performed using Graphpad prism 6.0 software.Descriptive results were expressed as mean±sem or mean±sd. Statisticalcomparisons were performed using t-test, two-way ANOVA analysis. The pvalue <0.05 was considered as statistically significant.

b. Results

Animal Clinical Observation During Experiment:

There was no obviously physical and behavior abnormality change in allexperiment rats during experiment.

Changes in Body Weight in All Experiment Rats:

All rat body weights were reduced slightly over first six to seven daysafter surgery during experiment period. Then all rat body weight beganto recover gradually with the experiment process. There was asignificant difference in body recovery between the CPD-X treatmentgroup and model group (Table 17, FIG. 10, and FIG. 11).

TABLE 17 Group CPD-X Model 10 mg/kg/d Changes in Changes in day (n = 6)the ratio (%) (n = 6) the ratio (%) 0 281.3 ± 7.8  0 286.0 ± 6.1  0 2253.2 ± 12.7 −11.6 ± 2.7 258.7 ± 13.4 −9.6 ± 3.6   5 242.3 ± 21.1 −15.4± 6.1 262.4 ± 22.6 −8.3 ± 6.7   7 244.3 ± 25.3 −14.7 ± 7.7 273.6 ± 24.9−4.4 ± 7.6   9 251.0 ± 26.5 −12.4 ± 7.9 283.9 ± 24.5 −0.8 ± 7.5   11254.2 ± 29.3 −11.3 ± 9.0 294.1 ± 23.5 2.8 ± 7.0 13 263.0 ± 33.7  −8.3 ±10.4 302.0 ± 22.0 5.5 ± 6.4 15 266.8 ± 39.5  −7.0 ± 12.1 309.0 ± 20.48.2 ± 6.1 17 279.8 ± 43.2  −2.5 ± 13.3 325.3 ± 21.2 13.7 ± 6.4  19 291.0± 45.2    1.4 ± 13.8 327.3 ± 20.7 14.4 ± 5.9  21 302.3 ± 48.3    5.4 ±14.7 338.9 ± 19.4 18.4 ± 5.3  22 310.0 ± 48.2    8.0 ± 14.6 341.6 ± 18.819.4 ± 5.4 

Pathological Analysis of Bronchi and Arterioles in Left Lung:

A Left lung histology represented a significant lung injury with a cleardamage board (FIG. 12A-D) which showed as a different degree ofbronchial hyperplasia, terminal fine bronchus and alveolar ductepithelial cell hyperplasia, different quantity of mucus in bronchiallumen. Different degree of inflammatory cell infiltration on bronchialwalls, especially in the adventitia area; partial bronchial wallthickness with granulation tissue were observed. Alveolar damages infibrosis core were represented as alveolar epithelial denudation,regeneration, alveolar wall inflammatory cell infiltration and fibrosis.Inflammatory exudation in the alveolar cavities with fibrotic mass wasalso recognized widely. A different degree of arteriole endothelial celldenudation and proliferation were seen both in fibrosis core andfibrosis board with a different degree of inflammatory cellinfiltration, mostly located in the adventitia area (FIG. 13A-D). CPD-Xtreatment had a significant therapeutic effect on reduction of bronchialand arteriole damages both in fibrotic core and in the border offibrosis (p<0.001) (Table 18, FIG. 14, and FIG. 15).

TABLE 18 In the fibrosis core (n = 6) In the border of fibrosis (n = 6)Model 8.53 ± 0.53  6.17 ± 0.66  CPD-X  6.23 ± 0.67***  4.8 ± 0.54**T-test: **p < 0.01 vs. model, ***p < 0.001 vs. model

Pathological Analysis of Left Lung Fibrosis Core:

With Masson Trichrome staining the left lung fibrosis was scoredaccording to Ashcraft scoring methods. A significant alveolar damagewith fibrosis was recognized (FIGS. 16A-D and FIG. 17). Ashcraft scoringdata indicated a significant reduction in fibrosis after CPD-X treatment(Table 19, FIG. 18). Based on the Ashcraft scoring criteria the fibrosisscores were divided two sections such as in section-I the score was ≤3,meaning the original alveolar structure was preserved with a differentdamage and fibrosis, and in section-II the score was ≥4, meaning thealveolar structure was damaged partially or totally with a differentdamage and fibrosis. The data showed over sixty percent of Ashcraftscore was ≥4 in model group. The CPD-X treatment group's fibrosis scorewas about 80%≤3. The statistical analysis showed that there was asignificantly difference between CPD-X treated group and model group(FIG. 19).

TABLE 19 Lung damage Ashcroft fibrosis % of fibrosis % of fibrosis area(%) score score (≤3) score (≥4) Model 70.12 ± 8.33  3.92 ± 0.72 38.3 ±22.29 61.67 ± 22.29  CPD-X 70.69 ± 10.66  2.55 ± 0.29**   90 ± 10.95*  10 ± 10.95* T-test: *p < 0.05 vs. model; **p < 0.01 vs. model

Pathological Analysis of Hearts:

Heart gross pathologic examination did not show a significant differencebetween two groups (FIG. 20A, FIG. 20B, and FIG. 21).

Thus, without wishing to be bound by theory, successful BLM inducedunilateral lung fibrosis model was achieved. CPD-X was administrated viaintraperitoneal injection starting on the day-8 of modeling for 14 daysindicated a significant therapeutic effect, showing a significantimprovement in bronchial and arteriole damage and alveolar fibrosis.CPD-X treatment slightly limited the right ventricle wall thickness dueto lung fibrosis. However, there was no statistic difference as comparedto model group animals.

It will be apparent to those skilled in the art that variousmodifications and variations can be made in the present inventionwithout departing from the scope or spirit of the invention. Otheraspects of the invention will be apparent to those skilled in the artfrom consideration of the specification and practice of the inventiondisclosed herein. It is intended that the specification and examples beconsidered as exemplary only, with a true scope and spirit of theinvention being indicated by the following claims.

What is claimed is:
 1. A compound having a structure represented by aformula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; or a pharmaceutically acceptable salt thereof.
 2. Thecompound of claim 1, wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 1-4 non-hydrogen groups independentlyselected from halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino]; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino.
 3. The compound of claim 1, wherein R¹ ismethyl.
 4. The compound of claim 1, wherein R³ is selected fromNR^(20a)R^(20b) and Ar¹.
 5. The compound of claim 1, wherein Ar¹, whenpresent, is selected from aryl and heteroaryl and is substituted with1-4 non-hydrogen groups independently selected from halogen, —CN, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), —(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino],—(CH₂)_(m)NH(C═O)(C1-C4 alkyl), —(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4alkyl), and Cy⁵.
 6. The compound of claim 1, having a structurerepresented by a formula selected from:


7. The compound of claim 1, having a structure represented by a formula:


8. The compound of claim 7, having a structure represented by a formula:


9. The compound of claim 7, having a structure represented by a formula:


10. The compound of claim 7, wherein the compound is selected from:

or a pharmaceutically acceptable salt thereof.
 11. The compound of claim1, having a structure represented by a formula:


12. The compound of claim 0, wherein the compound is selected from:

or a pharmaceutically acceptable salt thereof.
 13. A pharmaceuticalcomposition comprising a therapeutically effective amount of at leastone compound of claim 1 and a pharmaceutically acceptable carrier.
 14. Amethod for treating a disorder associated with TGF-β activity in asubject, the method comprising the step of administering to the subjectan effective amount of at least one compound having a structurerepresented by a formula selected from:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, NHPG¹, and Ar¹; wherein PG¹ is an amine protecting group;wherein each of R^(20a) and R^(20b), when present, is independentlyselected from hydrogen, C1-C4 alkyl, Cy², and amine protecting group;wherein Cy², when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR²¹, when present, is selected from C1-C4 alkyl, cycloalkyl, andheterocycloalkyl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino),—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino], —(CH₂)_(m)NH(C═O)(C1-C4 alkyl),—(CH₂)_(m)N(C1-C4 alkyl)(C═O)(C1-C4 alkyl), and Cy⁵; wherein m isselected from 0 and 1; wherein Cy⁵, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein each of R^(4a) and R^(4b) is independentlyselected from hydrogen and C1-C4 alkyl; or wherein each of R^(4a) andR^(4b) are optionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, —CN, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino,(C1-C4)(C1-C4) dialkylamino, and Cy⁶, wherein Cy⁶, when present, C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino, or a pharmaceutically acceptable salt thereof.
 15. Themethod of claim 14, wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein Ar¹, when present, is selected from aryl andheteroaryl and is substituted with 1-4 non-hydrogen groups independentlyselected from halogen, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, —(CH₂)_(m)NH₂, —(CH₂)_(m)(C1-C4 alkylamino), and—(CH₂)_(m)[(C1-C4)(C1-C4) dialkylamino]; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino.
 16. The method of claim 14, wherein thedisorder is a cancer, a fibrotic disorder, or an immune dysfunction. 17.The method of claim 14, wherein the subject has been diagnosed with aneed for treatment of the disorder prior to the administering step. 18.The method of claim 14, further comprising the step of identifying asubject in need of treatment of the disorder.
 19. A method forinhibiting TGF-β activity in a subject, the method comprising the stepof administering to the subject an effective amount of at least onecompound having a structure represented by a formula:

wherein n is selected from 1, 2, 3, and 4; wherein q is selected from 0and 1; wherein X is selected from O and S; wherein R¹ is selected fromC1-C8 alkyl and Cy¹; wherein Cy¹, when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R² is selected from hydrogen, C1-C4 alkyl, andamine protecting group; wherein R³ is selected from NR^(20a)R^(20b),NHCOR²¹, and Ar¹; wherein each of R^(20a) and R^(20b), when present, isindependently selected from hydrogen, C1-C4 alkyl, Cy², and amineprotecting group; wherein Cy², when present, is selected from C3-C8cycloalkyl and aryl and is substituted with 0-4 non-hydrogen groupsindependently selected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl,C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4)dialkylamino; wherein R²¹, when present, is selected from C1-C4 alkyl,cycloalkyl, and heterocycloalkyl and is substituted with 0-4non-hydrogen groups independently selected from halogen, —NH₂, C1-C4alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein Ar¹, when present,is selected from aryl and heteroaryl and is substituted with 1-4non-hydrogen groups independently selected from halogen, C1-C4 alkyl,C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, —(CH₂)_(m)NH₂,—(CH₂)_(m)(C1-C4 alkylamino), and —(CH₂)_(m)[(C1-C4)(C1-C4)dialkylamino], provided that Ar¹, when present, is substituted with atleast one non-hydrogen group selected from —(CH₂)_(m)NH₂ and—(CH₂)_(m)(C1-C4 alkylamino); wherein m is selected from 0 and 1;wherein each of R^(4a) and R^(4b) is independently selected fromhydrogen and C1-C4 alkyl; or wherein each of R^(4a) and R^(4b) areoptionally covalently bonded together and, together with theintermediate atoms, comprise a 3- to 7-membered cycloalkyl substitutedwith 0-4 non-hydrogen groups independently selected from halogen, —NH₂,C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl, C1-C4 alkoxy, C1-C4alkylamino, and (C1-C4)(C1-C4) dialkylamino; wherein each of R^(5a) andR^(5b) is independently selected from hydrogen, C1-C4 alkyl, and Cy³;wherein Cy³, when present, is selected from C3-C8 cycloalkyl and aryland is substituted with 0-4 non-hydrogen groups independently selectedfrom halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 hydroxyalkyl,C1-C4 alkoxy, C1-C4 alkylamino, and (C1-C4)(C1-C4) dialkylamino; whereinR⁶ is selected from C1-C4 alkyl and Cy⁴; and wherein Cy⁴, when present,is selected from C3-C8 cycloalkyl, C2-C7 heterocycloalkyl, aryl, andheteroaryl and is substituted with 0-4 non-hydrogen groups independentlyselected from halogen, —NH₂, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4hydroxyalkyl, C1-C4 alkoxy, C1-C4 alkoxyhaloalkyl, C1-C4 alkylamino, and(C1-C4)(C1-C4) dialkylamino, or a pharmaceutically acceptable saltthereof, thereby inhibiting TGF-β activity in the subject.
 20. Themethod of claim 19, wherein the disorder is a cancer, a fibroticdisorder, or an immune dysfunction.